4x+15=9x-9

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Solution for 4x+15=9x-9 equation:


Simplifying
4x + 15 = 9x + -9

Reorder the terms:
15 + 4x = 9x + -9

Reorder the terms:
15 + 4x = -9 + 9x

Solving
15 + 4x = -9 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
15 + 4x + -9x = -9 + 9x + -9x

Combine like terms: 4x + -9x = -5x
15 + -5x = -9 + 9x + -9x

Combine like terms: 9x + -9x = 0
15 + -5x = -9 + 0
15 + -5x = -9

Add '-15' to each side of the equation.
15 + -15 + -5x = -9 + -15

Combine like terms: 15 + -15 = 0
0 + -5x = -9 + -15
-5x = -9 + -15

Combine like terms: -9 + -15 = -24
-5x = -24

Divide each side by '-5'.
x = 4.8

Simplifying
x = 4.8

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