Question

use the method of substitution and solve these two equations
2x-y=3
7x-3y=11
I got an answer but it just doesn't look right

Answer 1

Can u plz post ur workings?

Answer 2

7x-3(3-2x)=11
7x-9-6x=11
7x+9-9-6x=11+9
x=21

y=3-2x

Answer 3

y=3-2(21)
y=-42

Answer 4

2x-y=3
2x-3=y
Nw substitute this and u will get t right.

Answer 5

so the answer would be (21,39)