18+2q=-31

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Solution for 18+2q=-31 equation: 


Simplifying
18 + 2q = -31

Solving
18 + 2q = -31

Solving for variable 'q'.

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

Add '-18' to each side of the equation.
18 + -18 + 2q = -31 + -18

Combine like terms: 18 + -18 = 0
0 + 2q = -31 + -18
2q = -31 + -18

Combine like terms: -31 + -18 = -49
2q = -49

Divide each side by '2'.
q = -24.5

Simplifying
q = -24.5

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