90-2Q=4Q

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Solution for 90-2Q=4Q equation:


Simplifying
90 + -2Q = 4Q

Solving
90 + -2Q = 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.
90 + -2Q + -4Q = 4Q + -4Q

Combine like terms: -2Q + -4Q = -6Q
90 + -6Q = 4Q + -4Q

Combine like terms: 4Q + -4Q = 0
90 + -6Q = 0

Add '-90' to each side of the equation.
90 + -90 + -6Q = 0 + -90

Combine like terms: 90 + -90 = 0
0 + -6Q = 0 + -90
-6Q = 0 + -90

Combine like terms: 0 + -90 = -90
-6Q = -90

Divide each side by '-6'.
Q = 15

Simplifying
Q = 15

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