M-7=8M

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Solution for M-7=8M equation:


Simplifying
M + -7 = 8M

Reorder the terms:
-7 + M = 8M

Solving
-7 + M = 8M

Solving for variable 'M'.

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

Add '-8M' to each side of the equation.
-7 + M + -8M = 8M + -8M

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

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

Add '7' to each side of the equation.
-7 + 7 + -7M = 0 + 7

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

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

Divide each side by '-7'.
M = -1

Simplifying
M = -1

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