57=22-7(m+3)

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Solution for 57=22-7(m+3) equation:


Simplifying
57 = 22 + -7(m + 3)

Reorder the terms:
57 = 22 + -7(3 + m)
57 = 22 + (3 * -7 + m * -7)
57 = 22 + (-21 + -7m)

Combine like terms: 22 + -21 = 1
57 = 1 + -7m

Solving
57 = 1 + -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.
57 + 7m = 1 + -7m + 7m

Combine like terms: -7m + 7m = 0
57 + 7m = 1 + 0
57 + 7m = 1

Add '-57' to each side of the equation.
57 + -57 + 7m = 1 + -57

Combine like terms: 57 + -57 = 0
0 + 7m = 1 + -57
7m = 1 + -57

Combine like terms: 1 + -57 = -56
7m = -56

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

Simplifying
m = -8

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