Question

Solve the equations:

(10) 3b + 5 = 5 (b + 1)

Answer 1

3b + 5 = 5 (b + 1)
$\Rightarrow$3b + 5 = 5b + 5
Subtracting 5b from both sides, we obtain:
3b + 5 – 5b = 5b + 5 – 5b
$\Rightarrow$ –2b + 5 = 5
Subtracting 5 from both sides, we obtain:
–2b + 5 – 5 = 5 – 5
$\Rightarrow$ –2b = 0
Dividing both sides by – 2, we obtain:
$$\begin{gathered} \frac{-2b}{-2}=\frac{0}{-2} \\ \Rightarrow b=0 \end{gathered}$$