2.1q-2.1-4.2q=-3.1q-4.1

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Solution for 2.1q-2.1-4.2q=-3.1q-4.1 equation: 


Simplifying
2.1q + -2.1 + -4.2q = -3.1q + -4.1

Reorder the terms:
-2.1 + 2.1q + -4.2q = -3.1q + -4.1

Combine like terms: 2.1q + -4.2q = -2.1q
-2.1 + -2.1q = -3.1q + -4.1

Reorder the terms:
-2.1 + -2.1q = -4.1 + -3.1q

Solving
-2.1 + -2.1q = -4.1 + -3.1q

Solving for variable 'q'.

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

Add '3.1q' to each side of the equation.
-2.1 + -2.1q + 3.1q = -4.1 + -3.1q + 3.1q

Combine like terms: -2.1q + 3.1q = 1q
-2.1 + 1q = -4.1 + -3.1q + 3.1q

Combine like terms: -3.1q + 3.1q = 0.0
-2.1 + 1q = -4.1 + 0.0
-2.1 + 1q = -4.1

Add '2.1' to each side of the equation.
-2.1 + 2.1 + 1q = -4.1 + 2.1

Combine like terms: -2.1 + 2.1 = 0.0
0.0 + 1q = -4.1 + 2.1
1q = -4.1 + 2.1

Combine like terms: -4.1 + 2.1 = -2
1q = -2

Divide each side by '1'.
q = -2

Simplifying
q = -2

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