9-5M+3M=M-12

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Solution for 9-5M+3M=M-12 equation:


Simplifying
9 + -5M + 3M = M + -12

Combine like terms: -5M + 3M = -2M
9 + -2M = M + -12

Reorder the terms:
9 + -2M = -12 + M

Solving
9 + -2M = -12 + M

Solving for variable 'M'.

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

Add '-1M' to each side of the equation.
9 + -2M + -1M = -12 + M + -1M

Combine like terms: -2M + -1M = -3M
9 + -3M = -12 + M + -1M

Combine like terms: M + -1M = 0
9 + -3M = -12 + 0
9 + -3M = -12

Add '-9' to each side of the equation.
9 + -9 + -3M = -12 + -9

Combine like terms: 9 + -9 = 0
0 + -3M = -12 + -9
-3M = -12 + -9

Combine like terms: -12 + -9 = -21
-3M = -21

Divide each side by '-3'.
M = 7

Simplifying
M = 7

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