2(4m-6)-21=

Solution for 2(4m-6)-21= equation:

Simplifying
2(4m + -6) + -21 = 0

Reorder the terms:
2(-6 + 4m) + -21 = 0
(-6 * 2 + 4m * 2) + -21 = 0
(-12 + 8m) + -21 = 0

Reorder the terms:
-12 + -21 + 8m = 0

Combine like terms: -12 + -21 = -33
-33 + 8m = 0

Solving
-33 + 8m = 0

Solving for variable 'm'.

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

Add '33' to each side of the equation.
-33 + 33 + 8m = 0 + 33

Combine like terms: -33 + 33 = 0
0 + 8m = 0 + 33
8m = 0 + 33

Combine like terms: 0 + 33 = 33
8m = 33

Divide each side by '8'.
m = 4.125

Simplifying
m = 4.125