Solve for x
x=10
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0.3x+1-0.7x=-3
Subtract 0.7x from both sides.
-0.4x+1=-3
Combine 0.3x and -0.7x to get -0.4x.
-0.4x=-3-1
Subtract 1 from both sides.
-0.4x=-4
Subtract 1 from -3 to get -4.
x=\frac{-4}{-0.4}
Divide both sides by -0.4.
x=\frac{-40}{-4}
Expand \frac{-4}{-0.4} by multiplying both numerator and the denominator by 10.
x=10
Divide -40 by -4 to get 10.
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