q+18=-q-20

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Solution for q+18=-q-20 equation:


Simplifying
q + 18 = -1q + -20

Reorder the terms:
18 + q = -1q + -20

Reorder the terms:
18 + q = -20 + -1q

Solving
18 + q = -20 + -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.
18 + q + q = -20 + -1q + q

Combine like terms: q + q = 2q
18 + 2q = -20 + -1q + q

Combine like terms: -1q + q = 0
18 + 2q = -20 + 0
18 + 2q = -20

Add '-18' to each side of the equation.
18 + -18 + 2q = -20 + -18

Combine like terms: 18 + -18 = 0
0 + 2q = -20 + -18
2q = -20 + -18

Combine like terms: -20 + -18 = -38
2q = -38

Divide each side by '2'.
q = -19

Simplifying
q = -19

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