Solving Systems Using Substitution

(1.) For the following system of equations, what is the x-value of the solution?
-x+2y=6
6y=x+18
ANSWER-0

(2.) ANSWER-50

(3.) ANSWER-62

(4.) ANSWER-25

1 answer

From -x+2y=6
x = 2y - 6
sub into the other
6y=x+18
6y = 2y-6 + 18
4y = 12
y = 3 , then x = 6-6 = 0
x = 0