9x+57=9-(2x+18)

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Solution for 9x+57=9-(2x+18) equation:


Simplifying
9x + 57 = 9 + -1(2x + 18)

Reorder the terms:
57 + 9x = 9 + -1(2x + 18)

Reorder the terms:
57 + 9x = 9 + -1(18 + 2x)
57 + 9x = 9 + (18 * -1 + 2x * -1)
57 + 9x = 9 + (-18 + -2x)

Combine like terms: 9 + -18 = -9
57 + 9x = -9 + -2x

Solving
57 + 9x = -9 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
57 + 9x + 2x = -9 + -2x + 2x

Combine like terms: 9x + 2x = 11x
57 + 11x = -9 + -2x + 2x

Combine like terms: -2x + 2x = 0
57 + 11x = -9 + 0
57 + 11x = -9

Add '-57' to each side of the equation.
57 + -57 + 11x = -9 + -57

Combine like terms: 57 + -57 = 0
0 + 11x = -9 + -57
11x = -9 + -57

Combine like terms: -9 + -57 = -66
11x = -66

Divide each side by '11'.
x = -6

Simplifying
x = -6

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