7=90-4q

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Solution for 7=90-4q equation:


Simplifying
7 = 90 + -4q

Solving
7 = 90 + -4q

Solving for variable 'q'.

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

Add '4q' to each side of the equation.
7 + 4q = 90 + -4q + 4q

Combine like terms: -4q + 4q = 0
7 + 4q = 90 + 0
7 + 4q = 90

Add '-7' to each side of the equation.
7 + -7 + 4q = 90 + -7

Combine like terms: 7 + -7 = 0
0 + 4q = 90 + -7
4q = 90 + -7

Combine like terms: 90 + -7 = 83
4q = 83

Divide each side by '4'.
q = 20.75

Simplifying
q = 20.75

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