15q-3[4q-6]=3q+9-9q

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Solution for 15q-3[4q-6]=3q+9-9q equation:


Simplifying
15q + -3[4q + -6] = 3q + 9 + -9q

Reorder the terms:
15q + -3[-6 + 4q] = 3q + 9 + -9q
15q + [-6 * -3 + 4q * -3] = 3q + 9 + -9q
15q + [18 + -12q] = 3q + 9 + -9q

Reorder the terms:
18 + 15q + -12q = 3q + 9 + -9q

Combine like terms: 15q + -12q = 3q
18 + 3q = 3q + 9 + -9q

Reorder the terms:
18 + 3q = 9 + 3q + -9q

Combine like terms: 3q + -9q = -6q
18 + 3q = 9 + -6q

Solving
18 + 3q = 9 + -6q

Solving for variable 'q'.

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

Add '6q' to each side of the equation.
18 + 3q + 6q = 9 + -6q + 6q

Combine like terms: 3q + 6q = 9q
18 + 9q = 9 + -6q + 6q

Combine like terms: -6q + 6q = 0
18 + 9q = 9 + 0
18 + 9q = 9

Add '-18' to each side of the equation.
18 + -18 + 9q = 9 + -18

Combine like terms: 18 + -18 = 0
0 + 9q = 9 + -18
9q = 9 + -18

Combine like terms: 9 + -18 = -9
9q = -9

Divide each side by '9'.
q = -1

Simplifying
q = -1

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