800=90+-10q

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Solution for 800=90+-10q equation:


Simplifying
800 = 90 + -10q

Solving
800 = 90 + -10q

Solving for variable 'q'.

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

Add '10q' to each side of the equation.
800 + 10q = 90 + -10q + 10q

Combine like terms: -10q + 10q = 0
800 + 10q = 90 + 0
800 + 10q = 90

Add '-800' to each side of the equation.
800 + -800 + 10q = 90 + -800

Combine like terms: 800 + -800 = 0
0 + 10q = 90 + -800
10q = 90 + -800

Combine like terms: 90 + -800 = -710
10q = -710

Divide each side by '10'.
q = -71

Simplifying
q = -71

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