q-2r=4

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Solution for q-2r=4 equation: 


Simplifying
q + -2r = 4

Solving
q + -2r = 4

Solving for variable 'q'.

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

Add '2r' to each side of the equation.
q + -2r + 2r = 4 + 2r

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

Simplifying
q = 4 + 2r

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