120=20+.5q

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Solution for 120=20+.5q equation:


Simplifying
120 = 20 + 0.5q

Solving
120 = 20 + 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.
120 + -0.5q = 20 + 0.5q + -0.5q

Combine like terms: 0.5q + -0.5q = 0.0
120 + -0.5q = 20 + 0.0
120 + -0.5q = 20

Add '-120' to each side of the equation.
120 + -120 + -0.5q = 20 + -120

Combine like terms: 120 + -120 = 0
0 + -0.5q = 20 + -120
-0.5q = 20 + -120

Combine like terms: 20 + -120 = -100
-0.5q = -100

Divide each side by '-0.5'.
q = 200

Simplifying
q = 200

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