-9(x-9)-(x+6)=9

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Solution for -9(x-9)-(x+6)=9 equation:


Simplifying
-9(x + -9) + -1(x + 6) = 9

Reorder the terms:
-9(-9 + x) + -1(x + 6) = 9
(-9 * -9 + x * -9) + -1(x + 6) = 9
(81 + -9x) + -1(x + 6) = 9

Reorder the terms:
81 + -9x + -1(6 + x) = 9
81 + -9x + (6 * -1 + x * -1) = 9
81 + -9x + (-6 + -1x) = 9

Reorder the terms:
81 + -6 + -9x + -1x = 9

Combine like terms: 81 + -6 = 75
75 + -9x + -1x = 9

Combine like terms: -9x + -1x = -10x
75 + -10x = 9

Solving
75 + -10x = 9

Solving for variable 'x'.

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

Add '-75' to each side of the equation.
75 + -75 + -10x = 9 + -75

Combine like terms: 75 + -75 = 0
0 + -10x = 9 + -75
-10x = 9 + -75

Combine like terms: 9 + -75 = -66
-10x = -66

Divide each side by '-10'.
x = 6.6

Simplifying
x = 6.6

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