3q-15.9=12-4.5q

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Solution for 3q-15.9=12-4.5q equation:


Simplifying
3q + -15.9 = 12 + -4.5q

Reorder the terms:
-15.9 + 3q = 12 + -4.5q

Solving
-15.9 + 3q = 12 + -4.5q

Solving for variable 'q'.

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

Add '4.5q' to each side of the equation.
-15.9 + 3q + 4.5q = 12 + -4.5q + 4.5q

Combine like terms: 3q + 4.5q = 7.5q
-15.9 + 7.5q = 12 + -4.5q + 4.5q

Combine like terms: -4.5q + 4.5q = 0.0
-15.9 + 7.5q = 12 + 0.0
-15.9 + 7.5q = 12

Add '15.9' to each side of the equation.
-15.9 + 15.9 + 7.5q = 12 + 15.9

Combine like terms: -15.9 + 15.9 = 0.0
0.0 + 7.5q = 12 + 15.9
7.5q = 12 + 15.9

Combine like terms: 12 + 15.9 = 27.9
7.5q = 27.9

Divide each side by '7.5'.
q = 3.72

Simplifying
q = 3.72

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