-0.5x-20=50

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Solution for -0.5x-20=50 equation: 


Simplifying
-0.5x + -20 = 50

Reorder the terms:
-20 + -0.5x = 50

Solving
-20 + -0.5x = 50

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + -0.5x = 50 + 20

Combine like terms: -20 + 20 = 0
0 + -0.5x = 50 + 20
-0.5x = 50 + 20

Combine like terms: 50 + 20 = 70
-0.5x = 70

Divide each side by '-0.5'.
x = -140

Simplifying
x = -140

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