SOLUTION: A=1/2h(a+b) solve for b

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Question 164167: A=1/2h(a+b) solve for b
Found 2 solutions by Alan3354, ankor@dixie-net.com:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A=1/2h(a+b) solve for b
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"Solve for" means to get b on one side of the = by itself.
A=1/2h(a+b)
Multiply by 2
2A = h(a+b)
2A = ha + hb
hb = 2A - ha
b = (2A - ha)/h
Or,
b = (2A/h) - a
Both are correct.

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A=1/2h(a+b) solve for b
:
1%2F2*h(a+b) = A
:
multiply equation by 2, results:
h(a+b) = 2A
:
Divide both sides by h; results:
a + b = %282A%29%2Fh
:
Subtract a from both sides; results
b = %282A%29%2Fh - a