Solve for x
x=-\frac{8}{25}=-0.32
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4=100\left(3x+1\right)
Variable x cannot be equal to -\frac{1}{3} since division by zero is not defined. Multiply both sides of the equation by 3x+1.
4=300x+100
Use the distributive property to multiply 100 by 3x+1.
300x+100=4
Swap sides so that all variable terms are on the left hand side.
300x=4-100
Subtract 100 from both sides.
300x=-96
Subtract 100 from 4 to get -96.
x=\frac{-96}{300}
Divide both sides by 300.
x=-\frac{8}{25}
Reduce the fraction \frac{-96}{300} to lowest terms by extracting and canceling out 12.
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