Question

Solve the system using substitution.

y = 2x + 7
y = 5x + 4

Answer 1

You can set 2x+7 and 5x+4 equal to each other since they're both equal to y. :)
2x+7 = 5x+4
Solve for x, then plug in your result to either of the first equations to find y. :)

Answer 2

I got 1

Answer 3

where should i plug in 1?

Answer 4

You can plug it into either y = 2( )+7 or y = 5( ) + 4

Answer 5

(1,9)

Answer 6

Good job ^_^

Answer 7

Thanks!