4x+5x+4=4x-5

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Solution for 4x+5x+4=4x-5 equation:


Simplifying
4x + 5x + 4 = 4x + -5

Reorder the terms:
4 + 4x + 5x = 4x + -5

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

Reorder the terms:
4 + 9x = -5 + 4x

Solving
4 + 9x = -5 + 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 = -5 + 4x + -4x

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

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

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

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

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

Divide each side by '5'.
x = -1.8

Simplifying
x = -1.8

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