Question

Question 3(a)
Solve the following equations:
4=5(p-2)

Answer 1

Use distributive property : A(B+C)=AB+AC
$4=5(p-2)$ $\Rightarrow 4=5\times p-5\times 2\Rightarrow 4=5p-10$
$\Rightarrow 5p-10=4\Rightarrow 5p=4+10$ $\Rightarrow 5p=14$
$\Rightarrow p=\frac{14}{5}$