20=0.5Q+40

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Solution for 20=0.5Q+40 equation: 


Simplifying
20 = 0.5Q + 40

Reorder the terms:
20 = 40 + 0.5Q

Solving
20 = 40 + 0.5Q

Solving for variable 'Q'.

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

Add '-0.5Q' to each side of the equation.
20 + -0.5Q = 40 + 0.5Q + -0.5Q

Combine like terms: 0.5Q + -0.5Q = 0.0
20 + -0.5Q = 40 + 0.0
20 + -0.5Q = 40

Add '-20' to each side of the equation.
20 + -20 + -0.5Q = 40 + -20

Combine like terms: 20 + -20 = 0
0 + -0.5Q = 40 + -20
-0.5Q = 40 + -20

Combine like terms: 40 + -20 = 20
-0.5Q = 20

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

Simplifying
Q = -40

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