78=2(m+3)+M

Solution for 78=2(m+3)+M equation:

Simplifying
78 = 2(m + 3) + M

Reorder the terms:
78 = 2(3 + m) + M
78 = (3 * 2 + m * 2) + M
78 = (6 + 2m) + M

Reorder the terms:
78 = 6 + M + 2m

Solving
78 = 6 + M + 2m

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.
78 + -1M = 6 + M + -1M + 2m

Combine like terms: M + -1M = 0
78 + -1M = 6 + 0 + 2m
78 + -1M = 6 + 2m

Add '-78' to each side of the equation.
78 + -78 + -1M = 6 + -78 + 2m

Combine like terms: 78 + -78 = 0
0 + -1M = 6 + -78 + 2m
-1M = 6 + -78 + 2m

Combine like terms: 6 + -78 = -72
-1M = -72 + 2m

Divide each side by '-1'.
M = 72 + -2m

Simplifying
M = 72 + -2m