1.2m+7.5+2.1=6

Solution for 1.2m+7.5+2.1=6 equation:

Simplifying
1.2m + 7.5 + 2.1 = 6

Reorder the terms:
7.5 + 2.1 + 1.2m = 6

Combine like terms: 7.5 + 2.1 = 9.6
9.6 + 1.2m = 6

Solving
9.6 + 1.2m = 6

Solving for variable 'm'.

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

Add '-9.6' to each side of the equation.
9.6 + -9.6 + 1.2m = 6 + -9.6

Combine like terms: 9.6 + -9.6 = 0.0
0.0 + 1.2m = 6 + -9.6
1.2m = 6 + -9.6

Combine like terms: 6 + -9.6 = -3.6
1.2m = -3.6

Divide each side by '1.2'.
m = -3

Simplifying
m = -3