-7.2(m+3)+m=21.6

Solution for -7.2(m+3)+m=21.6 equation:

Simplifying
-7.2(m + 3) + m = 21.6

Reorder the terms:
-7.2(3 + m) + m = 21.6
(3 * -7.2 + m * -7.2) + m = 21.6
(-21.6 + -7.2m) + m = 21.6

Combine like terms: -7.2m + m = -6.2m
-21.6 + -6.2m = 21.6

Solving
-21.6 + -6.2m = 21.6

Solving for variable 'm'.

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

Add '21.6' to each side of the equation.
-21.6 + 21.6 + -6.2m = 21.6 + 21.6

Combine like terms: -21.6 + 21.6 = 0.0
0.0 + -6.2m = 21.6 + 21.6
-6.2m = 21.6 + 21.6

Combine like terms: 21.6 + 21.6 = 43.2
-6.2m = 43.2

Divide each side by '-6.2'.
m = -6.967741935

Simplifying
m = -6.967741935