84-q=0.4q

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Solution for 84-q=0.4q equation:


Simplifying
84 + -1q = 0.4q

Solving
84 + -1q = 0.4q

Solving for variable 'q'.

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

Add '-0.4q' to each side of the equation.
84 + -1q + -0.4q = 0.4q + -0.4q

Combine like terms: -1q + -0.4q = -1.4q
84 + -1.4q = 0.4q + -0.4q

Combine like terms: 0.4q + -0.4q = 0.0
84 + -1.4q = 0.0

Add '-84' to each side of the equation.
84 + -84 + -1.4q = 0.0 + -84

Combine like terms: 84 + -84 = 0
0 + -1.4q = 0.0 + -84
-1.4q = 0.0 + -84

Combine like terms: 0.0 + -84 = -84
-1.4q = -84

Divide each side by '-1.4'.
q = 60

Simplifying
q = 60

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