81=-7(m-3)+4

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Solution for 81=-7(m-3)+4 equation:


Simplifying
81 = -7(m + -3) + 4

Reorder the terms:
81 = -7(-3 + m) + 4
81 = (-3 * -7 + m * -7) + 4
81 = (21 + -7m) + 4

Reorder the terms:
81 = 21 + 4 + -7m

Combine like terms: 21 + 4 = 25
81 = 25 + -7m

Solving
81 = 25 + -7m

Solving for variable 'm'.

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

Add '7m' to each side of the equation.
81 + 7m = 25 + -7m + 7m

Combine like terms: -7m + 7m = 0
81 + 7m = 25 + 0
81 + 7m = 25

Add '-81' to each side of the equation.
81 + -81 + 7m = 25 + -81

Combine like terms: 81 + -81 = 0
0 + 7m = 25 + -81
7m = 25 + -81

Combine like terms: 25 + -81 = -56
7m = -56

Divide each side by '7'.
m = -8

Simplifying
m = -8

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