.4(2-q)=-30

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Solution for .4(2-q)=-30 equation: 


Simplifying
0.4(2 + -1q) = -30
(2 * 0.4 + -1q * 0.4) = -30
(0.8 + -0.4q) = -30

Solving
0.8 + -0.4q = -30

Solving for variable 'q'.

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

Add '-0.8' to each side of the equation.
0.8 + -0.8 + -0.4q = -30 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + -0.4q = -30 + -0.8
-0.4q = -30 + -0.8

Combine like terms: -30 + -0.8 = -30.8
-0.4q = -30.8

Divide each side by '-0.4'.
q = 77

Simplifying
q = 77

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