SOLUTION: a=3b-1 b=2a+2

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Question 154779This question is from textbook beginning and intermediate algebra
: a=3b-1
b=2a+2 This question is from textbook beginning and intermediate algebra

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a=3b-1
b=2a+2
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Since eqn 1 already shows a as a function of b, substitute for a in eqn 2.
b=2*(3b-1)+2
b=6b-2+2
b = 6b
b = 0 (the only possibility)
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Sub b into eqn 1
a = 3*0-1
a = -1