3(q+18)=21-3(q+5)

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Solution for 3(q+18)=21-3(q+5) equation:


Simplifying
3(q + 18) = 21 + -3(q + 5)

Reorder the terms:
3(18 + q) = 21 + -3(q + 5)
(18 * 3 + q * 3) = 21 + -3(q + 5)
(54 + 3q) = 21 + -3(q + 5)

Reorder the terms:
54 + 3q = 21 + -3(5 + q)
54 + 3q = 21 + (5 * -3 + q * -3)
54 + 3q = 21 + (-15 + -3q)

Combine like terms: 21 + -15 = 6
54 + 3q = 6 + -3q

Solving
54 + 3q = 6 + -3q

Solving for variable 'q'.

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

Add '3q' to each side of the equation.
54 + 3q + 3q = 6 + -3q + 3q

Combine like terms: 3q + 3q = 6q
54 + 6q = 6 + -3q + 3q

Combine like terms: -3q + 3q = 0
54 + 6q = 6 + 0
54 + 6q = 6

Add '-54' to each side of the equation.
54 + -54 + 6q = 6 + -54

Combine like terms: 54 + -54 = 0
0 + 6q = 6 + -54
6q = 6 + -54

Combine like terms: 6 + -54 = -48
6q = -48

Divide each side by '6'.
q = -8

Simplifying
q = -8

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