Question

Solve the following equations :

(i)$x+6=10$ (ii)$2y-3=5$ (iii)$5m=20$

(iv)$\frac{6y}{7}=12$

Answer 1

$\left(i\right)x+6=10$

$\Rightarrow x+6-6=10-6$

$\therefore x=4$

$\left(ii\right)2y-3=5$

$\Rightarrow 2y-3+3=5+3$

$\Rightarrow 2y=8$

$\Rightarrow y=\frac{8}{2}$

$\therefore y=4$

$\left(iii\right)5m=20$

$\Rightarrow \frac{5m}{5}=\frac{20}{5}$

$\therefore m=4$

$\left(iv\right)\frac{6y}{7}=12$

$\Rightarrow \frac{6y}{7}\times 7=12\times 7=84$

$\therefore y=\frac{84}{6}=14$