Question

by using substitution method 2x equal to 20+3y,y equal to x-13 divided by 2

Answer 1

2x=20+3y=x-13÷2
how to solve it there are 2 = sign

Answer 2

2x = 20 +3y

y = (x-13)/2

Simplify the second equation.

x = 2y + 13

Substiture this into the second equation:

2(2y + 13) = 20+3y

4y + 26 = 20 +3y

y = -6

Substitute this for y.

x = 2(-6) + 13

x = 1