Solve for x
x=150
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100+0.9x-90=50+0.95\left(x-50\right)
Use the distributive property to multiply 0.9 by x-100.
10+0.9x=50+0.95\left(x-50\right)
Subtract 90 from 100 to get 10.
10+0.9x=50+0.95x-47.5
Use the distributive property to multiply 0.95 by x-50.
10+0.9x=2.5+0.95x
Subtract 47.5 from 50 to get 2.5.
10+0.9x-0.95x=2.5
Subtract 0.95x from both sides.
10-0.05x=2.5
Combine 0.9x and -0.95x to get -0.05x.
-0.05x=2.5-10
Subtract 10 from both sides.
-0.05x=-7.5
Subtract 10 from 2.5 to get -7.5.
x=\frac{-7.5}{-0.05}
Divide both sides by -0.05.
x=\frac{-750}{-5}
Expand \frac{-7.5}{-0.05} by multiplying both numerator and the denominator by 100.
x=150
Divide -750 by -5 to get 150.
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