117-7x=20x-21

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Solution for 117-7x=20x-21 equation:


Simplifying
117 + -7x = 20x + -21

Reorder the terms:
117 + -7x = -21 + 20x

Solving
117 + -7x = -21 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
117 + -7x + -20x = -21 + 20x + -20x

Combine like terms: -7x + -20x = -27x
117 + -27x = -21 + 20x + -20x

Combine like terms: 20x + -20x = 0
117 + -27x = -21 + 0
117 + -27x = -21

Add '-117' to each side of the equation.
117 + -117 + -27x = -21 + -117

Combine like terms: 117 + -117 = 0
0 + -27x = -21 + -117
-27x = -21 + -117

Combine like terms: -21 + -117 = -138
-27x = -138

Divide each side by '-27'.
x = 5.111111111

Simplifying
x = 5.111111111

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