Question

39= 3m - 12

I'd really appreciate it if you showed your work.

Answer 1

To solve for m;

39 = 3m -12

39+12 = 3m -12 + 12 (add 12 to both sides)

51 = 3m

51 ÷ 3 = m

17 =m

m =17

Hope that helps, let me know if you don't understand something :D

Answer 2

Flip the equation.
$3m-12=39$
and add 12 to both sides.
$3m-12+12=39+12$
$3m=51$
Now divide both sides by 3.
$\frac{3m}{3}$$= \frac{51}{3}$


Final answer: m=17