0
In order to solve the following system of equations by subtraction could you do before subtracting the equation so that one variable will be eliminated when you subtract them 4x-2y7 3x-3y15?
Wiki User
∙ 6y ago
Given 4 x - 2y = 7
And 3x - 3y = 15
Or simplified as x - y = 5 (dividing by 3)
Now multiply by 2 and you get 2 x - 2y = 10
Here subtraction makes y eliminated
So subtracting 2 x = - 3
==> x = -3/2
Plugging we get y = -13/2
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
In order to solve the following system of equations by addition which could you do before adding the equations so that one variable will be eliminated when you add them?
Multiply the top equation by -3 and the bottom equation by 2.
Which of the following systems of equations has no solution?
If they are quadratic equations then if their discriminant is less than zero then they have no solutions
Which of the following is a system of linear equations in two variables?
Simultaneous equations have at least two unknown variables.
What is the first step in solving the following system of equations by substitution?
The first step is to show the equations which have not been shown.
Which of the following equations could you use to find the nth term of a compound interest sequence?
The following is the answer.
Which equations is the translation 2 units left of the graph of y x?
Since there are no "following" equations, the answer is NONE OF THEM.Since there are no "following" equations, the answer is NONE OF THEM.Since there are no "following" equations, the answer is NONE OF THEM.Since there are no "following" equations, the answer is NONE OF THEM.
In order to solve the following system of equations by addition which could you do before adding the equations so that one variable will be eliminated when you add them?
Multiply the top equation by -3 and the bottom equation by 2.
What is graphing tables and equations?
Which of the following is a disadvantage to using equations?
Which of the following equations has the solution set 0?
It would help very much if the "following equations" actually DID follow!
What is the name of number leftover following subtraction?
the difference
Which of the following systems of equations has no solution?
If they are quadratic equations then if their discriminant is less than zero then they have no solutions
Which of the following is a system of linear equations in two variables?
Simultaneous equations have at least two unknown variables.
Which of thefollowing is an asset of a firm?
The following equations is correct
which of the following equations is balanced?
2na+s-2nas
Which of the following equations have the correct notation?
b,c
Which of these rules is applicable to subtracting two values that have different numbers of decimal places for example subtracting 2.1 from 2.15?
None of the following rules are applicable.
What is the first step in solving the following system of equations by substitution?
The first step is to show the equations which have not been shown.
