9(5x+9)+4=8(5x-5)

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Solution for 9(5x+9)+4=8(5x-5) equation:


Simplifying
9(5x + 9) + 4 = 8(5x + -5)

Reorder the terms:
9(9 + 5x) + 4 = 8(5x + -5)
(9 * 9 + 5x * 9) + 4 = 8(5x + -5)
(81 + 45x) + 4 = 8(5x + -5)

Reorder the terms:
81 + 4 + 45x = 8(5x + -5)

Combine like terms: 81 + 4 = 85
85 + 45x = 8(5x + -5)

Reorder the terms:
85 + 45x = 8(-5 + 5x)
85 + 45x = (-5 * 8 + 5x * 8)
85 + 45x = (-40 + 40x)

Solving
85 + 45x = -40 + 40x

Solving for variable 'x'.

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

Add '-40x' to each side of the equation.
85 + 45x + -40x = -40 + 40x + -40x

Combine like terms: 45x + -40x = 5x
85 + 5x = -40 + 40x + -40x

Combine like terms: 40x + -40x = 0
85 + 5x = -40 + 0
85 + 5x = -40

Add '-85' to each side of the equation.
85 + -85 + 5x = -40 + -85

Combine like terms: 85 + -85 = 0
0 + 5x = -40 + -85
5x = -40 + -85

Combine like terms: -40 + -85 = -125
5x = -125

Divide each side by '5'.
x = -25

Simplifying
x = -25

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