23=21+q

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Solution for 23=21+q equation:


Simplifying
23 = 21 + q

Solving
23 = 21 + q

Solving for variable 'q'.

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

Add '-1q' to each side of the equation.
23 + -1q = 21 + q + -1q

Combine like terms: q + -1q = 0
23 + -1q = 21 + 0
23 + -1q = 21

Add '-23' to each side of the equation.
23 + -23 + -1q = 21 + -23

Combine like terms: 23 + -23 = 0
0 + -1q = 21 + -23
-1q = 21 + -23

Combine like terms: 21 + -23 = -2
-1q = -2

Divide each side by '-1'.
q = 2

Simplifying
q = 2

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