9x+4=4x-15

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


Simplifying
9x + 4 = 4x + -15

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

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

Solving
4 + 9x = -15 + 4x

Solving for variable 'x'.

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

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

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

Combine like terms: 4x + -4x = 0
4 + 5x = -15 + 0
4 + 5x = -15

Add '-4' to each side of the equation.
4 + -4 + 5x = -15 + -4

Combine like terms: 4 + -4 = 0
0 + 5x = -15 + -4
5x = -15 + -4

Combine like terms: -15 + -4 = -19
5x = -19

Divide each side by '5'.
x = -3.8

Simplifying
x = -3.8

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