x+9+8x=(-72)

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Solution for x+9+8x=(-72) equation:


Simplifying
x + 9 + 8x = (-72)

Reorder the terms:
9 + x + 8x = (-72)

Combine like terms: x + 8x = 9x
9 + 9x = (-72)
9 + 9x = -72

Solving
9 + 9x = -72

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 9x = -72 + -9

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

Combine like terms: -72 + -9 = -81
9x = -81

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

Simplifying
x = -9

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