2.1q-3.9-3.8q=-0.7q-3.9

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Solution for 2.1q-3.9-3.8q=-0.7q-3.9 equation: 


Simplifying
2.1q + -3.9 + -3.8q = -0.7q + -3.9

Reorder the terms:
-3.9 + 2.1q + -3.8q = -0.7q + -3.9

Combine like terms: 2.1q + -3.8q = -1.7q
-3.9 + -1.7q = -0.7q + -3.9

Reorder the terms:
-3.9 + -1.7q = -3.9 + -0.7q

Add '3.9' to each side of the equation.
-3.9 + 3.9 + -1.7q = -3.9 + 3.9 + -0.7q

Combine like terms: -3.9 + 3.9 = 0.0
0.0 + -1.7q = -3.9 + 3.9 + -0.7q
-1.7q = -3.9 + 3.9 + -0.7q

Combine like terms: -3.9 + 3.9 = 0.0
-1.7q = 0.0 + -0.7q
-1.7q = -0.7q

Solving
-1.7q = -0.7q

Solving for variable 'q'.

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

Add '0.7q' to each side of the equation.
-1.7q + 0.7q = -0.7q + 0.7q

Combine like terms: -1.7q + 0.7q = -1q
-1q = -0.7q + 0.7q

Combine like terms: -0.7q + 0.7q = 0.0
-1q = 0.0

Divide each side by '-1'.
q = 0.0

Simplifying
q = 0.0

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