answersLogoWhite

0

We have two equations.
6x-y=-9 and -y=7x+4.

We substitue 7x+4 into the first equation and we have

6x+7x+4=-9 or 13x=-13 so x=-13/13 of -1
Now plug that into either equation and we have
-y=-7+4 or -y=-3 so y=3.
The solution is (-1,3)

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

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)


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


2x-3y equals -2 4x plus y equals 24 use substitution method and work the system of equation?

how do you use the substitution method for this problem 2x-3y=-2 4x+y=24


Solve using substitution x plus y equals 3 and y equals 9?

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".


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


What is the answer to this math problem 5x plus 1 equals 41 solve for x?

x=8


Can anyone help me solve this no word math problem O plus T plus T plus F equals T?

467


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


How do you solve 4y plus x equals 8?

How do you solve 4y plus x equals 8


How do you solve 2x plus 2y equals 4 and 4x plus y equals 1?

2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.


A class writes the equation n plus n plus 1 plus n plus 2 equals 87 to solve the following problem?

n = 28