71=-3x-7(-3x+13)

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Solution for 71=-3x-7(-3x+13) equation:


Simplifying
71 = -3x + -7(-3x + 13)

Reorder the terms:
71 = -3x + -7(13 + -3x)
71 = -3x + (13 * -7 + -3x * -7)
71 = -3x + (-91 + 21x)

Reorder the terms:
71 = -91 + -3x + 21x

Combine like terms: -3x + 21x = 18x
71 = -91 + 18x

Solving
71 = -91 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
71 + -18x = -91 + 18x + -18x

Combine like terms: 18x + -18x = 0
71 + -18x = -91 + 0
71 + -18x = -91

Add '-71' to each side of the equation.
71 + -71 + -18x = -91 + -71

Combine like terms: 71 + -71 = 0
0 + -18x = -91 + -71
-18x = -91 + -71

Combine like terms: -91 + -71 = -162
-18x = -162

Divide each side by '-18'.
x = 9

Simplifying
x = 9

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