8+4=9m-7

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Solution for 8+4=9m-7 equation: 


Simplifying
8 + 4 = 9m + -7

Combine like terms: 8 + 4 = 12
12 = 9m + -7

Reorder the terms:
12 = -7 + 9m

Solving
12 = -7 + 9m

Solving for variable 'm'.

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

Add '-9m' to each side of the equation.
12 + -9m = -7 + 9m + -9m

Combine like terms: 9m + -9m = 0
12 + -9m = -7 + 0
12 + -9m = -7

Add '-12' to each side of the equation.
12 + -12 + -9m = -7 + -12

Combine like terms: 12 + -12 = 0
0 + -9m = -7 + -12
-9m = -7 + -12

Combine like terms: -7 + -12 = -19
-9m = -19

Divide each side by '-9'.
m = 2.111111111

Simplifying
m = 2.111111111

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