Question 164167
A=1/2h(a+b) solve for b
:
{{{1/2}}}*h(a+b) = A
:
multiply equation by 2, results:
h(a+b) = 2A
:
Divide both sides by h; results:
a + b = {{{(2A)/h}}}
:
Subtract a from both sides; results
b = {{{(2A)/h}}} - a