SOLUTION: substitution method 2a + 6b =4 3a -b = 6

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Question 1139445: substitution method 2a + 6b =4 3a -b = 6
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
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Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
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substitution method 2a + 6b =4 3a -b = 6
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Use substitution method to solve
system%282a%2B6b=4%2C3a-b=6%29.

Simplest way might be:
b=3a-6
-
2a%2B6%283a-6%29=4
2a%2B18a-36=4
20a=36%2B4
20a=40
a=2, and you can find b yourself from this.