4x+9-1=0

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Solution for 4x+9-1=0 equation: 


Simplifying
4x + 9 + -1 = 0

Reorder the terms:
9 + -1 + 4x = 0

Combine like terms: 9 + -1 = 8
8 + 4x = 0

Solving
8 + 4x = 0

Solving for variable 'x'.

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

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

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

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

Divide each side by '4'.
x = -2

Simplifying
x = -2

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