Help Please!
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.

Question

Help Please!
 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.

jamierox4ev3r · Answer

you would divide both sides first by 5x

anonymous · Answer

thats not an option on the test

jamierox4ev3r · Answer

then you would get this: 5x=2y
hold on im trying to explain the steps to lead you to an option

anonymous · Answer

ok

anonymous · Answer

is it the first one?

jamierox4ev3r · Answer

no its the second one

anonymous · Answer

thankyou!

jamierox4ev3r · Answer

then you would divide both sides by 2 and get a final answer of y=-5/2x

jamierox4ev3r · Answer

so that means that you would multiply the second equation by two and end because if you work backwards, you would use the reciprocal of division which is multiplication