15-2=2M

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Solution for 15-2=2M equation:


Simplifying
15 + -2 = 2M

Combine like terms: 15 + -2 = 13
13 = 2M

Solving
13 = 2M

Solving for variable 'M'.

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

Add '-2M' to each side of the equation.
13 + -2M = 2M + -2M

Combine like terms: 2M + -2M = 0
13 + -2M = 0

Add '-13' to each side of the equation.
13 + -13 + -2M = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -2M = 0 + -13
-2M = 0 + -13

Combine like terms: 0 + -13 = -13
-2M = -13

Divide each side by '-2'.
M = 6.5

Simplifying
M = 6.5

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