2(q-1)=4

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Solution for 2(q-1)=4 equation: 


Simplifying
2(q + -1) = 4

Reorder the terms:
2(-1 + q) = 4
(-1 * 2 + q * 2) = 4
(-2 + 2q) = 4

Solving
-2 + 2q = 4

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 = 4 + 2

Combine like terms: -2 + 2 = 0
0 + 2q = 4 + 2
2q = 4 + 2

Combine like terms: 4 + 2 = 6
2q = 6

Divide each side by '2'.
q = 3

Simplifying
q = 3

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