4=-8x+9x

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Solution for 4=-8x+9x equation:


Simplifying
4 = -8x + 9x

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

Solving
4 = 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
4 + -1x = 1x + -1x

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

Add '-4' to each side of the equation.
4 + -4 + -1x = 0 + -4

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

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

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

Simplifying
x = 4

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