4 years ago

Solve the system of equation 2x+3y=40 and -2x+2y=20

2 answers:

6 0

Hi Daniellepowers!

To solve this system of equations, add the two equations.
2x+3y=40
+
-2x+2y=20
=
5y=60
y=12

Plug y back into any equation,
2x+3(12)=40
2x+36=40
2x=4
x=2

Solution: (2, 4)

B. x= 2 y=12

Hope this helps :)

ad-work [718]4 years ago

5 0

2x+3y=40
-2x+2y=20
5y=60
***y=12***

2x+36=40
***x=2***

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