-x+4+9x=20

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Solution for -x+4+9x=20 equation: 


Simplifying
-1x + 4 + 9x = 20

Reorder the terms:
4 + -1x + 9x = 20

Combine like terms: -1x + 9x = 8x
4 + 8x = 20

Solving
4 + 8x = 20

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 + 8x = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 8x = 20 + -4
8x = 20 + -4

Combine like terms: 20 + -4 = 16
8x = 16

Divide each side by '8'.
x = 2

Simplifying
x = 2

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