# How do you solve for b: b/2 + c = d?

##### 1 Answer
Dec 3, 2016

$b = 2 \left(d - c\right)$

#### Explanation:

Isolate the term which contains $b$ first.

Subtracting c from both sides.

$\textcolor{red}{\frac{b}{2}} + c = d$

$\textcolor{red}{\frac{b}{2}} = d - c$

Isolate $\textcolor{red}{b}$ by multiplying by 2 on both sides

$\textcolor{red}{b} = 2 \left(d - c\right)$