Question

5x + 2y = 8

x
+y=4
If you want to solve the system of equations by addition, which of the following could you do?
Multiply the second equation by 5 and add.
Multiply the second equation by 2 and add.
Multiply the second equation by -2 and add.
NEXTOUESTION
ASK FOR HEID

Answer 1

you multiply the second equation by -2.

Explanation:

to get rid of y and find x. Then you plug x into one of the equations to find y