You can
put this solution on YOUR website! the substitution method should be used to solve which system of
equations
a.5x-7y=16
2x-7y=12
b.4x+3y=-5
6x-3y=2
c.x=3y+1
2x+y=7
d.2x+6y=3
3x+2y=-1
The substitution method should be used when there is a term in either of
the letters with the understood coefficient of either 1 or -1. Otherwise
the elimination method is better.
(c) is the correct choice because it is the only one which has an x, -x,
y or -y. It has both an x and a y.
Edwin
