-3(x+9)-42=8-56

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Solution for -3(x+9)-42=8-56 equation:


Simplifying
-3(x + 9) + -42 = 8 + -56

Reorder the terms:
-3(9 + x) + -42 = 8 + -56
(9 * -3 + x * -3) + -42 = 8 + -56
(-27 + -3x) + -42 = 8 + -56

Reorder the terms:
-27 + -42 + -3x = 8 + -56

Combine like terms: -27 + -42 = -69
-69 + -3x = 8 + -56

Combine like terms: 8 + -56 = -48
-69 + -3x = -48

Solving
-69 + -3x = -48

Solving for variable 'x'.

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

Add '69' to each side of the equation.
-69 + 69 + -3x = -48 + 69

Combine like terms: -69 + 69 = 0
0 + -3x = -48 + 69
-3x = -48 + 69

Combine like terms: -48 + 69 = 21
-3x = 21

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

Simplifying
x = -7

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