Question

I need an explanation on how to solve linear systems by substitution.

Answer 1

okay so you have 2 equations. so take one and solve for y. ex: y=3+2x
the next equation that involves the y put that in replace of it for ex: 2y=3+3x
2(3+2x)=3+3x
6+4x=3+3x
then solve per usual.