7m-2(m-9)=39

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Solution for 7m-2(m-9)=39 equation:


Simplifying
7m + -2(m + -9) = 39

Reorder the terms:
7m + -2(-9 + m) = 39
7m + (-9 * -2 + m * -2) = 39
7m + (18 + -2m) = 39

Reorder the terms:
18 + 7m + -2m = 39

Combine like terms: 7m + -2m = 5m
18 + 5m = 39

Solving
18 + 5m = 39

Solving for variable 'm'.

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

Add '-18' to each side of the equation.
18 + -18 + 5m = 39 + -18

Combine like terms: 18 + -18 = 0
0 + 5m = 39 + -18
5m = 39 + -18

Combine like terms: 39 + -18 = 21
5m = 21

Divide each side by '5'.
m = 4.2

Simplifying
m = 4.2

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