21=37-q

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Solution for 21=37-q equation:


Simplifying
21 = 37 + -1q

Solving
21 = 37 + -1q

Solving for variable 'q'.

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

Add 'q' to each side of the equation.
21 + q = 37 + -1q + q

Combine like terms: -1q + q = 0
21 + q = 37 + 0
21 + q = 37

Add '-21' to each side of the equation.
21 + -21 + q = 37 + -21

Combine like terms: 21 + -21 = 0
0 + q = 37 + -21
q = 37 + -21

Combine like terms: 37 + -21 = 16
q = 16

Simplifying
q = 16

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