Solve for x
x=300
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0.4x+30-0.7x=-60
Subtract 0.7x from both sides.
-0.3x+30=-60
Combine 0.4x and -0.7x to get -0.3x.
-0.3x=-60-30
Subtract 30 from both sides.
-0.3x=-90
Subtract 30 from -60 to get -90.
x=\frac{-90}{-0.3}
Divide both sides by -0.3.
x=\frac{-900}{-3}
Expand \frac{-90}{-0.3} by multiplying both numerator and the denominator by 10.
x=300
Divide -900 by -3 to get 300.
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