50=.9x-20

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Solution for 50=.9x-20 equation:


Simplifying
50 = 0.9x + -20

Reorder the terms:
50 = -20 + 0.9x

Solving
50 = -20 + 0.9x

Solving for variable 'x'.

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

Add '-0.9x' to each side of the equation.
50 + -0.9x = -20 + 0.9x + -0.9x

Combine like terms: 0.9x + -0.9x = 0.0
50 + -0.9x = -20 + 0.0
50 + -0.9x = -20

Add '-50' to each side of the equation.
50 + -50 + -0.9x = -20 + -50

Combine like terms: 50 + -50 = 0
0 + -0.9x = -20 + -50
-0.9x = -20 + -50

Combine like terms: -20 + -50 = -70
-0.9x = -70

Divide each side by '-0.9'.
x = 77.77777778

Simplifying
x = 77.77777778

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