10q+9=7q-9

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Solution for 10q+9=7q-9 equation:


Simplifying
10q + 9 = 7q + -9

Reorder the terms:
9 + 10q = 7q + -9

Reorder the terms:
9 + 10q = -9 + 7q

Solving
9 + 10q = -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.
9 + 10q + -7q = -9 + 7q + -7q

Combine like terms: 10q + -7q = 3q
9 + 3q = -9 + 7q + -7q

Combine like terms: 7q + -7q = 0
9 + 3q = -9 + 0
9 + 3q = -9

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

Combine like terms: 9 + -9 = 0
0 + 3q = -9 + -9
3q = -9 + -9

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

Divide each side by '3'.
q = -6

Simplifying
q = -6

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