138-7x=20x+15

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Solution for 138-7x=20x+15 equation: 


Simplifying
138 + -7x = 20x + 15

Reorder the terms:
138 + -7x = 15 + 20x

Solving
138 + -7x = 15 + 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.
138 + -7x + -20x = 15 + 20x + -20x

Combine like terms: -7x + -20x = -27x
138 + -27x = 15 + 20x + -20x

Combine like terms: 20x + -20x = 0
138 + -27x = 15 + 0
138 + -27x = 15

Add '-138' to each side of the equation.
138 + -138 + -27x = 15 + -138

Combine like terms: 138 + -138 = 0
0 + -27x = 15 + -138
-27x = 15 + -138

Combine like terms: 15 + -138 = -123
-27x = -123

Divide each side by '-27'.
x = 4.555555556

Simplifying
x = 4.555555556

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