3M-7=-8

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Solution for 3M-7=-8 equation: 


Simplifying
3M + -7 = -8

Reorder the terms:
-7 + 3M = -8

Solving
-7 + 3M = -8

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 + 3M = -8 + 7

Combine like terms: -7 + 7 = 0
0 + 3M = -8 + 7
3M = -8 + 7

Combine like terms: -8 + 7 = -1
3M = -1

Divide each side by '3'.
M = -0.3333333333

Simplifying
M = -0.3333333333

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