9x+72=-9x

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Solution for 9x+72=-9x equation:


Simplifying
9x + 72 = -9x

Reorder the terms:
72 + 9x = -9x

Solving
72 + 9x = -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.
72 + 9x + 9x = -9x + 9x

Combine like terms: 9x + 9x = 18x
72 + 18x = -9x + 9x

Combine like terms: -9x + 9x = 0
72 + 18x = 0

Add '-72' to each side of the equation.
72 + -72 + 18x = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 18x = 0 + -72
18x = 0 + -72

Combine like terms: 0 + -72 = -72
18x = -72

Divide each side by '18'.
x = -4

Simplifying
x = -4

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