7q-18=12q-3q+20

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Solution for 7q-18=12q-3q+20 equation:


Simplifying
7q + -18 = 12q + -3q + 20

Reorder the terms:
-18 + 7q = 12q + -3q + 20

Reorder the terms:
-18 + 7q = 20 + 12q + -3q

Combine like terms: 12q + -3q = 9q
-18 + 7q = 20 + 9q

Solving
-18 + 7q = 20 + 9q

Solving for variable 'q'.

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

Add '-9q' to each side of the equation.
-18 + 7q + -9q = 20 + 9q + -9q

Combine like terms: 7q + -9q = -2q
-18 + -2q = 20 + 9q + -9q

Combine like terms: 9q + -9q = 0
-18 + -2q = 20 + 0
-18 + -2q = 20

Add '18' to each side of the equation.
-18 + 18 + -2q = 20 + 18

Combine like terms: -18 + 18 = 0
0 + -2q = 20 + 18
-2q = 20 + 18

Combine like terms: 20 + 18 = 38
-2q = 38

Divide each side by '-2'.
q = -19

Simplifying
q = -19

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