2(q-1)=20

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Solution for 2(q-1)=20 equation: 


Simplifying
2(q + -1) = 20

Reorder the terms:
2(-1 + q) = 20
(-1 * 2 + q * 2) = 20
(-2 + 2q) = 20

Solving
-2 + 2q = 20

Solving for variable 'q'.

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

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

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

Combine like terms: 20 + 2 = 22
2q = 22

Divide each side by '2'.
q = 11

Simplifying
q = 11

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