Question

Which expression gives the x-coordinate of the solution of the system?


{5x+3y= -18
{2x- 4y= -28

Answer 1

your idea?

Answer 2

B

Answer 3

nope

Answer 4

C?

Answer 5

btw can you explain it to me?

Answer 6

Stop guessing, please. If you don't want to know how to solve, I give you the solution, A

Answer 7

to solve by elimination/addition method
multiply the 1st eqn by 4 and the 2nd by 3 and the 2 "new" eqns and solve for x

Answer 8

thank you! :)