2(5m+9)-21=

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Solution for 2(5m+9)-21= equation:


Simplifying
2(5m + 9) + -21 = 0

Reorder the terms:
2(9 + 5m) + -21 = 0
(9 * 2 + 5m * 2) + -21 = 0
(18 + 10m) + -21 = 0

Reorder the terms:
18 + -21 + 10m = 0

Combine like terms: 18 + -21 = -3
-3 + 10m = 0

Solving
-3 + 10m = 0

Solving for variable 'm'.

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

Add '3' to each side of the equation.
-3 + 3 + 10m = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 10m = 0 + 3
10m = 0 + 3

Combine like terms: 0 + 3 = 3
10m = 3

Divide each side by '10'.
m = 0.3

Simplifying
m = 0.3

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