SOLUTION: Please assist me in this substution problem & please include the check at the end. 5x-3y=65 x=-2y Thank You! Steve

Question 312836: Please assist me in this substution problem & please include the check at the end. 5x-3y=65
x=-2y
Thank You!
Steve
Found 2 solutions by ichudov, rfer:
Answer by ichudov(507) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving -3*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=-5. Since , x=10.

Answer: .

Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
5(-2y)-3y=65
-10y-3y=65
-13y=65
y=-5
-------------
x=-2(-5)
x=10
-------------
proof
5(10)-3(-5)=65
50+15=65
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