Question

Solve the formula for b2. A=1/2h(b1+b2)

Answer 1

Firstly, multiply both sides by 2: $2A=h(b_1+b_2)$

Next, divide both sides by h: $\frac{2A}{h}=b_1+b_2$

Next, subtract both sides by b1, and your answer will be $\frac{2A}{h}-b_1=b_2$