7m-3(2m+7)=

Solution for 7m-3(2m+7)= equation:

Simplifying
7m + -3(2m + 7) = 0

Reorder the terms:
7m + -3(7 + 2m) = 0
7m + (7 * -3 + 2m * -3) = 0
7m + (-21 + -6m) = 0

Reorder the terms:
-21 + 7m + -6m = 0

Combine like terms: 7m + -6m = 1m
-21 + 1m = 0

Solving
-21 + 1m = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + 21 + 1m = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 1m = 0 + 21
1m = 0 + 21

Combine like terms: 0 + 21 = 21
1m = 21

Divide each side by '1'.
m = 21

Simplifying
m = 21