(9x-7)-(8x+9)-(9x-9)=

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Solution for (9x-7)-(8x+9)-(9x-9)= equation:


Simplifying
(9x + -7) + -1(8x + 9) + -1(9x + -9) = 0

Reorder the terms:
(-7 + 9x) + -1(8x + 9) + -1(9x + -9) = 0

Remove parenthesis around (-7 + 9x)
-7 + 9x + -1(8x + 9) + -1(9x + -9) = 0

Reorder the terms:
-7 + 9x + -1(9 + 8x) + -1(9x + -9) = 0
-7 + 9x + (9 * -1 + 8x * -1) + -1(9x + -9) = 0
-7 + 9x + (-9 + -8x) + -1(9x + -9) = 0

Reorder the terms:
-7 + 9x + -9 + -8x + -1(-9 + 9x) = 0
-7 + 9x + -9 + -8x + (-9 * -1 + 9x * -1) = 0
-7 + 9x + -9 + -8x + (9 + -9x) = 0

Reorder the terms:
-7 + -9 + 9 + 9x + -8x + -9x = 0

Combine like terms: -7 + -9 = -16
-16 + 9 + 9x + -8x + -9x = 0

Combine like terms: -16 + 9 = -7
-7 + 9x + -8x + -9x = 0

Combine like terms: 9x + -8x = 1x
-7 + 1x + -9x = 0

Combine like terms: 1x + -9x = -8x
-7 + -8x = 0

Solving
-7 + -8x = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + -8x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -8x = 0 + 7
-8x = 0 + 7

Combine like terms: 0 + 7 = 7
-8x = 7

Divide each side by '-8'.
x = -0.875

Simplifying
x = -0.875

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