-8x+9(-x+9)=13

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Solution for -8x+9(-x+9)=13 equation:


Simplifying
-8x + 9(-1x + 9) = 13

Reorder the terms:
-8x + 9(9 + -1x) = 13
-8x + (9 * 9 + -1x * 9) = 13
-8x + (81 + -9x) = 13

Reorder the terms:
81 + -8x + -9x = 13

Combine like terms: -8x + -9x = -17x
81 + -17x = 13

Solving
81 + -17x = 13

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + -17x = 13 + -81

Combine like terms: 81 + -81 = 0
0 + -17x = 13 + -81
-17x = 13 + -81

Combine like terms: 13 + -81 = -68
-17x = -68

Divide each side by '-17'.
x = 4

Simplifying
x = 4

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