0=x+4-9x

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


Simplifying
0 = x + 4 + -9x

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

Combine like terms: x + -9x = -8x
0 = 4 + -8x

Solving
0 = 4 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
0 + 8x = 4 + -8x + 8x
Remove the zero:
8x = 4 + -8x + 8x

Combine like terms: -8x + 8x = 0
8x = 4 + 0
8x = 4

Divide each side by '8'.
x = 0.5

Simplifying
x = 0.5

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