152k views
8 votes
Solve the system of equations by adding. checking your answer

2x+2y=2
3x-2y=43
the solution of the system is ( , )​

User Rekaszeru
by
4.5k points

1 Answer

4 votes

Answer:

Explanation:

This is very easy, because the coefficients of the y terms are 2 and -2. You can easily eliminate the y terms by adding the equations together:

2x + 2y = 2

3x - 2y = 43

-----------------

5x + 0y = 45, so x = 9

Use the value of x to solve for y:

2(9) + 2y = 2

y = -8

(x,y) = (2, -8)

User Stillanoob
by
3.9k points