-0.4q=0.1q-20

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Solution for -0.4q=0.1q-20 equation: 


Simplifying
-0.4q = 0.1q + -20

Reorder the terms:
-0.4q = -20 + 0.1q

Solving
-0.4q = -20 + 0.1q

Solving for variable 'q'.

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

Add '-0.1q' to each side of the equation.
-0.4q + -0.1q = -20 + 0.1q + -0.1q

Combine like terms: -0.4q + -0.1q = -0.5q
-0.5q = -20 + 0.1q + -0.1q

Combine like terms: 0.1q + -0.1q = 0.0
-0.5q = -20 + 0.0
-0.5q = -20

Divide each side by '-0.5'.
q = 40

Simplifying
q = 40

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