Question 158962
a = 1/2bh  Solve for b.

To solve for a variable means to isolate the variable on one side of the equation.

NOTE: We can write (1/2)(bh) as one fraction like this (bh/2).  They mean the same thing.

We now have this:

a = (bh/2)

We multiply both sides of the fractional equation by 2.  This is done to remove the fraction.

Doing this we now have a linear equation:

2a = bh

We now divide both sides of the equation by h to find the value of b.

Final answer:  

(2a/h) = b

Did you follow?