answersLogoWhite

0


Best Answer

Since the second equation is already solved for "y", you can replace "y" by "9" in the other equation. Then solve the new equation for "x".

User Avatar

Wiki User

โˆ™ 2014-06-17 15:13:44
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar
Study guides

Algebra

20 cards

A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

โžก๏ธ
See all cards

J's study guide

1 card

What is the name of Steve on minecraft's name

โžก๏ธ
See all cards

Steel Tip Darts Out Chart

96 cards

170

169

168

167

โžก๏ธ
See all cards

Add your answer:

Earn +20 pts
Q: Solve using substitution x plus y equals 3 and y equals 9?
Write your answer...
Submit
Related questions

How would use solve the system of equation x plus 3y equals 23 by using substitution?

You'd need another equation to sub in


Solve using substitution x minus y equals 2 and x plus y equals -4?

-2


Use the substitution method to solve the system of equations Choose the correct ordered pair 2x plus 3y equals 13 x equals 2?

(2,3)


What is 2x plus 3y equals -1 5x-2y plus -12 using substitution?

x = -2 and y = 1


Solve this equation using substitution 5x plus y equals 1 and 3x plus 2y plus 2?

It is not possible to do so because the question contains one equation (5x + y = 1) and one expression (3x + 2y + 2). An expression cannot be solved.


What is Solve By Subtitution y0.5x plus 2 -y-2x plus 4?

When using substitution the answer to y0.5x plus 2 -y-2x plus 4 is y = -2 (x-1.


How do you solve 0 equals x squared minus ten x plus 16?

Solve using the quadratic formula


What is the answer for the ordered pair form x plus seven y equals 7 two x plus y equals 8 using substitution?

If you mean: x+7y = 7 and 2x+y = 8 Then by substitution: x = 49/13 and y = 6/13


How do you solve x plus y equals 4 and y equals 2X plus 1 by substitution method?

If: x+y = 4 and y = 2x+1 Then: 4-x = 2x+1 => 3 = 3x => 1 = x So by substitution: x = 1 and y = 3


Solve the system of equations using linear combination a plus c equals 9 8a plus 4.5c equals 58?

a=5: c=4


Solve a2 plus 30a plus 56 equals 0?

a2+30a+56=0 , solve for a Using the quadratic formula, you will find that: a=-2 , a=-28


How do you solve 10x plus 4 equals 7x 31?

There is no symbol between 7x and 31. Please resubmit using words eg "plus", "equals" etc.


What is the answer for the ordered pair form x plus 7y equals 39 3x minus 2y equals 2 using substitution?

If you mean: x+7y = 39 and 3x-2y = 2 Then by substitution: x = 4 and y = 5


How do you Solve this system of equations using the addition method 6a - 5b equals 9 2a plus 5b equals 23?

the answer


How do you solve y equals 2x-6 and 3x plus y equals 4 using the elimination method?

(2,-2)


How do you solve 4y plus x equals 8?

How do you solve 4y plus x equals 8


If Using substitution method to solve the equation y equals 8x plus 3 and y equals 7?

This is not Calculus.y=7(Already solved)substiute y=7 into y=8xtherefore 7 = 8xtherefore x = 7/8


4x-7y equals 13 -2x plus 7y equals -3?

One way to solve this system of equations is by using matrices. Form an augmented matrix in which the first 2x2 matrix is the coefficient matrix and the 2x1 matrix on its right is the answer. Now apply Gaussian Elimination and back-substitution. Using this method gives x=5 and y=1.


Equation of a line and a point using substitution to determine whether the point is on the line y equals 5x plus 3 A18?

Yes its on the line.


Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24?

Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4


Solve -2 plus 5 equals?

-2 plus 5 equals +3


Substitution method 2x plus 3y equals 13 x equals 2?

2x-3y=13


Solve this equation using substitution 3x plus 2y equals 2 and -2 plus y equals 8?

From second equation: y = 8 + 2xSubstitute for y in first equation: 3x + 16 + 4x = 2ie 7x = -14ie x = -2 and y = 4


Solve this equation using substitution 5x plus y equals 5 and 3x plus 2y equals 3?

From first equation: y = 5 - 5xSubstitute for y in second equation: 3x + 10 - 10x = 3ie -7x = -7ie x = 1 and y = 0


Solve the system of equations using the elimination method negative x plus y equals negative 3 and 3x plus 2y equals 9?

By elimination: x = 3 and y = 0