SOLUTION: Solve the linear system by substitution
3x - 3y = -6
x + 2y = -1
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Question 463024: Solve the linear system by substitution
3x - 3y = -6
x + 2y = -1
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
From the bottom equation, x = -2y - 1.
Putting this into the top equation, we get 3(-2y - 1) - 3y = -6, or
-6y - 3 - 3y = -6,
-9y = -3, or y = 1/3.
==> x = -2/3 - 1 = -5/3.
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