9q-15=7q-9

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Solution for 9q-15=7q-9 equation:


Simplifying
9q + -15 = 7q + -9

Reorder the terms:
-15 + 9q = 7q + -9

Reorder the terms:
-15 + 9q = -9 + 7q

Solving
-15 + 9q = -9 + 7q

Solving for variable 'q'.

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

Add '-7q' to each side of the equation.
-15 + 9q + -7q = -9 + 7q + -7q

Combine like terms: 9q + -7q = 2q
-15 + 2q = -9 + 7q + -7q

Combine like terms: 7q + -7q = 0
-15 + 2q = -9 + 0
-15 + 2q = -9

Add '15' to each side of the equation.
-15 + 15 + 2q = -9 + 15

Combine like terms: -15 + 15 = 0
0 + 2q = -9 + 15
2q = -9 + 15

Combine like terms: -9 + 15 = 6
2q = 6

Divide each side by '2'.
q = 3

Simplifying
q = 3

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