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 = 7
7 + 4m = 21

Solving
7 + 4m = 21

Solving for variable 'm'.

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

Add '-7' to each side of the equation.
7 + -7 + 4m = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 4m = 21 + -7
4m = 21 + -7

Combine like terms: 21 + -7 = 14
4m = 14

Divide each side by '4'.
m = 3.5

Simplifying
m = 3.5

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