150-7x=20x+21

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Solution for 150-7x=20x+21 equation:


Simplifying
150 + -7x = 20x + 21

Reorder the terms:
150 + -7x = 21 + 20x

Solving
150 + -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.
150 + -7x + -20x = 21 + 20x + -20x

Combine like terms: -7x + -20x = -27x
150 + -27x = 21 + 20x + -20x

Combine like terms: 20x + -20x = 0
150 + -27x = 21 + 0
150 + -27x = 21

Add '-150' to each side of the equation.
150 + -150 + -27x = 21 + -150

Combine like terms: 150 + -150 = 0
0 + -27x = 21 + -150
-27x = 21 + -150

Combine like terms: 21 + -150 = -129
-27x = -129

Divide each side by '-27'.
x = 4.777777778

Simplifying
x = 4.777777778

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