Solve for x
x=12500
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5000+8x=8.4x
Multiply 10 and 0.8 to get 8.
5000+8x-8.4x=0
Subtract 8.4x from both sides.
5000-0.4x=0
Combine 8x and -8.4x to get -0.4x.
-0.4x=-5000
Subtract 5000 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-5000}{-0.4}
Divide both sides by -0.4.
x=\frac{-50000}{-4}
Expand \frac{-5000}{-0.4} by multiplying both numerator and the denominator by 10.
x=12500
Divide -50000 by -4 to get 12500.
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