4-7x=x-20

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Solution for 4-7x=x-20 equation:


Simplifying
4 + -7x = x + -20

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

Solving
4 + -7x = -20 + x

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 + -7x + -1x = -20 + x + -1x

Combine like terms: -7x + -1x = -8x
4 + -8x = -20 + x + -1x

Combine like terms: x + -1x = 0
4 + -8x = -20 + 0
4 + -8x = -20

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 = -24
-8x = -24

Divide each side by '-8'.
x = 3

Simplifying
x = 3

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