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

Question 164167: A=1/2h(a+b) solve for b
Found 2 solutions by Alan3354, ankor@dixie-net.com:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A=1/2h(a+b) solve for b
-------------------
"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) (Show Source): You can put this solution on YOUR website!
A=1/2h(a+b) solve for b
:
*h(a+b) = A
:
multiply equation by 2, results:
h(a+b) = 2A
:
Divide both sides by h; results:
a + b =
:
Subtract a from both sides; results
b = - a
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