-171=-9(x+4)

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Solution for -171=-9(x+4) equation:


Simplifying
-171 = -9(x + 4)

Reorder the terms:
-171 = -9(4 + x)
-171 = (4 * -9 + x * -9)
-171 = (-36 + -9x)

Solving
-171 = -36 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-171 + 9x = -36 + -9x + 9x

Combine like terms: -9x + 9x = 0
-171 + 9x = -36 + 0
-171 + 9x = -36

Add '171' to each side of the equation.
-171 + 171 + 9x = -36 + 171

Combine like terms: -171 + 171 = 0
0 + 9x = -36 + 171
9x = -36 + 171

Combine like terms: -36 + 171 = 135
9x = 135

Divide each side by '9'.
x = 15

Simplifying
x = 15

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