13x-9x+4=0

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Solution for 13x-9x+4=0 equation: 


Simplifying
13x + -9x + 4 = 0

Reorder the terms:
4 + 13x + -9x = 0

Combine like terms: 13x + -9x = 4x
4 + 4x = 0

Solving
4 + 4x = 0

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 4x = 0 + -4

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

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

Divide each side by '4'.
x = -1

Simplifying
x = -1

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