Solve for y
y=3000
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60+0.56y+370+600+470-0.06y=y
Multiply 0.7 and 0.8 to get 0.56.
430+0.56y+600+470-0.06y=y
Add 60 and 370 to get 430.
1030+0.56y+470-0.06y=y
Add 430 and 600 to get 1030.
1500+0.56y-0.06y=y
Add 1030 and 470 to get 1500.
1500+0.5y=y
Combine 0.56y and -0.06y to get 0.5y.
1500+0.5y-y=0
Subtract y from both sides.
1500-0.5y=0
Combine 0.5y and -y to get -0.5y.
-0.5y=-1500
Subtract 1500 from both sides. Anything subtracted from zero gives its negation.
y=\frac{-1500}{-0.5}
Divide both sides by -0.5.
y=\frac{-15000}{-5}
Expand \frac{-1500}{-0.5} by multiplying both numerator and the denominator by 10.
y=3000
Divide -15000 by -5 to get 3000.
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