2x+20-x=9+4x-7

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Solution for 2x+20-x=9+4x-7 equation:


Simplifying
2x + 20 + -1x = 9 + 4x + -7

Reorder the terms:
20 + 2x + -1x = 9 + 4x + -7

Combine like terms: 2x + -1x = 1x
20 + 1x = 9 + 4x + -7

Reorder the terms:
20 + 1x = 9 + -7 + 4x

Combine like terms: 9 + -7 = 2
20 + 1x = 2 + 4x

Solving
20 + 1x = 2 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
20 + 1x + -4x = 2 + 4x + -4x

Combine like terms: 1x + -4x = -3x
20 + -3x = 2 + 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -3x = 2 + 0
20 + -3x = 2

Add '-20' to each side of the equation.
20 + -20 + -3x = 2 + -20

Combine like terms: 20 + -20 = 0
0 + -3x = 2 + -20
-3x = 2 + -20

Combine like terms: 2 + -20 = -18
-3x = -18

Divide each side by '-3'.
x = 6

Simplifying
x = 6

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