M-13=7

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Solution for M-13=7 equation: 


Simplifying
M + -13 = 7

Reorder the terms:
-13 + M = 7

Solving
-13 + M = 7

Solving for variable 'M'.

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

Add '13' to each side of the equation.
-13 + 13 + M = 7 + 13

Combine like terms: -13 + 13 = 0
0 + M = 7 + 13
M = 7 + 13

Combine like terms: 7 + 13 = 20
M = 20

Simplifying
M = 20

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