16q+15-7q=-8(-q-2)-20

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Solution for 16q+15-7q=-8(-q-2)-20 equation:


Simplifying
16q + 15 + -7q = -8(-1q + -2) + -20

Reorder the terms:
15 + 16q + -7q = -8(-1q + -2) + -20

Combine like terms: 16q + -7q = 9q
15 + 9q = -8(-1q + -2) + -20

Reorder the terms:
15 + 9q = -8(-2 + -1q) + -20
15 + 9q = (-2 * -8 + -1q * -8) + -20
15 + 9q = (16 + 8q) + -20

Reorder the terms:
15 + 9q = 16 + -20 + 8q

Combine like terms: 16 + -20 = -4
15 + 9q = -4 + 8q

Solving
15 + 9q = -4 + 8q

Solving for variable 'q'.

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

Add '-8q' to each side of the equation.
15 + 9q + -8q = -4 + 8q + -8q

Combine like terms: 9q + -8q = 1q
15 + 1q = -4 + 8q + -8q

Combine like terms: 8q + -8q = 0
15 + 1q = -4 + 0
15 + 1q = -4

Add '-15' to each side of the equation.
15 + -15 + 1q = -4 + -15

Combine like terms: 15 + -15 = 0
0 + 1q = -4 + -15
1q = -4 + -15

Combine like terms: -4 + -15 = -19
1q = -19

Divide each side by '1'.
q = -19

Simplifying
q = -19

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