15-4(m-2)=21

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Solution for 15-4(m-2)=21 equation:


Simplifying
15 + -4(m + -2) = 21

Reorder the terms:
15 + -4(-2 + m) = 21
15 + (-2 * -4 + m * -4) = 21
15 + (8 + -4m) = 21

Combine like terms: 15 + 8 = 23
23 + -4m = 21

Solving
23 + -4m = 21

Solving for variable 'm'.

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

Add '-23' to each side of the equation.
23 + -23 + -4m = 21 + -23

Combine like terms: 23 + -23 = 0
0 + -4m = 21 + -23
-4m = 21 + -23

Combine like terms: 21 + -23 = -2
-4m = -2

Divide each side by '-4'.
m = 0.5

Simplifying
m = 0.5

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