66-2m=5(m+9)

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Solution for 66-2m=5(m+9) equation:


Simplifying
66 + -2m = 5(m + 9)

Reorder the terms:
66 + -2m = 5(9 + m)
66 + -2m = (9 * 5 + m * 5)
66 + -2m = (45 + 5m)

Solving
66 + -2m = 45 + 5m

Solving for variable 'm'.

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

Add '-5m' to each side of the equation.
66 + -2m + -5m = 45 + 5m + -5m

Combine like terms: -2m + -5m = -7m
66 + -7m = 45 + 5m + -5m

Combine like terms: 5m + -5m = 0
66 + -7m = 45 + 0
66 + -7m = 45

Add '-66' to each side of the equation.
66 + -66 + -7m = 45 + -66

Combine like terms: 66 + -66 = 0
0 + -7m = 45 + -66
-7m = 45 + -66

Combine like terms: 45 + -66 = -21
-7m = -21

Divide each side by '-7'.
m = 3

Simplifying
m = 3

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