7q-12-9q=-20

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Solution for 7q-12-9q=-20 equation:


Simplifying
7q + -12 + -9q = -20

Reorder the terms:
-12 + 7q + -9q = -20

Combine like terms: 7q + -9q = -2q
-12 + -2q = -20

Solving
-12 + -2q = -20

Solving for variable 'q'.

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

Add '12' to each side of the equation.
-12 + 12 + -2q = -20 + 12

Combine like terms: -12 + 12 = 0
0 + -2q = -20 + 12
-2q = -20 + 12

Combine like terms: -20 + 12 = -8
-2q = -8

Divide each side by '-2'.
q = 4

Simplifying
q = 4

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