-4x+20=-30

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Solution for -4x+20=-30 equation: 


Simplifying
-4x + 20 = -30

Reorder the terms:
20 + -4x = -30

Solving
20 + -4x = -30

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 + -4x = -30 + -20

Combine like terms: 20 + -20 = 0
0 + -4x = -30 + -20
-4x = -30 + -20

Combine like terms: -30 + -20 = -50
-4x = -50

Divide each side by '-4'.
x = 12.5

Simplifying
x = 12.5

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