30-0.7Qd=-30+0.8Qs

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Solution for 30-0.7Qd=-30+0.8Qs equation: 


Simplifying
30 + -0.7Qd = -30 + 0.8Qs

Solving
30 + -0.7dQ = -30 + 0.8sQ

Solving for variable 'd'.

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

Add '-30' to each side of the equation.
30 + -30 + -0.7dQ = -30 + -30 + 0.8sQ

Combine like terms: 30 + -30 = 0
0 + -0.7dQ = -30 + -30 + 0.8sQ
-0.7dQ = -30 + -30 + 0.8sQ

Combine like terms: -30 + -30 = -60
-0.7dQ = -60 + 0.8sQ

Divide each side by '-0.7Q'.
d = 85.71428571Q-1 + -1.142857143s

Simplifying
d = 85.71428571Q-1 + -1.142857143s

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