Solve for x
x=10
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0.06x+1.35-0.09x=0.07\times 15
Use the distributive property to multiply 0.09 by 15-x.
-0.03x+1.35=0.07\times 15
Combine 0.06x and -0.09x to get -0.03x.
-0.03x+1.35=1.05
Multiply 0.07 and 15 to get 1.05.
-0.03x=1.05-1.35
Subtract 1.35 from both sides.
-0.03x=-0.3
Subtract 1.35 from 1.05 to get -0.3.
x=\frac{-0.3}{-0.03}
Divide both sides by -0.03.
x=\frac{-30}{-3}
Expand \frac{-0.3}{-0.03} by multiplying both numerator and the denominator by 100.
x=10
Divide -30 by -3 to get 10.
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