.20q=9-.40q

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Solution for .20q=9-.40q equation:


Simplifying
0.20q = 9 + -0.40q

Solving
0.20q = 9 + -0.40q

Solving for variable 'q'.

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

Add '0.40q' to each side of the equation.
0.20q + 0.40q = 9 + -0.40q + 0.40q

Combine like terms: 0.20q + 0.40q = 0.6q
0.6q = 9 + -0.40q + 0.40q

Combine like terms: -0.40q + 0.40q = 0.00
0.6q = 9 + 0.00
0.6q = 9

Divide each side by '0.6'.
q = 15

Simplifying
q = 15

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