Question

Solve the following equations and check your result:
$3m+2(m+2)=20-(2m-5)$

Answer 1

$3m+2(m+2)=20-(2m-5)$

$\Rightarrow$ $3m+2m+4=20-2m+5$

$\Rightarrow$ $5m+4=25-2m$

$\Rightarrow$ $5m+2m=25-4$

$\Rightarrow$ $7m=21$

$\therefore$ $m=\frac{21}{7}$

$\therefore$ $m=3$