5(x+9)=8x-9

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Solution for 5(x+9)=8x-9 equation:


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

Reorder the terms:
5(9 + x) = 8x + -9
(9 * 5 + x * 5) = 8x + -9
(45 + 5x) = 8x + -9

Reorder the terms:
45 + 5x = -9 + 8x

Solving
45 + 5x = -9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
45 + 5x + -8x = -9 + 8x + -8x

Combine like terms: 5x + -8x = -3x
45 + -3x = -9 + 8x + -8x

Combine like terms: 8x + -8x = 0
45 + -3x = -9 + 0
45 + -3x = -9

Add '-45' to each side of the equation.
45 + -45 + -3x = -9 + -45

Combine like terms: 45 + -45 = 0
0 + -3x = -9 + -45
-3x = -9 + -45

Combine like terms: -9 + -45 = -54
-3x = -54

Divide each side by '-3'.
x = 18

Simplifying
x = 18

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