Solve for x
x = -\frac{15}{14} = -1\frac{1}{14} \approx -1.071428571
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100+7x\times 4=70
Add 70 and 30 to get 100.
100+28x=70
Multiply 7 and 4 to get 28.
28x=70-100
Subtract 100 from both sides.
28x=-30
Subtract 100 from 70 to get -30.
x=\frac{-30}{28}
Divide both sides by 28.
x=-\frac{15}{14}
Reduce the fraction \frac{-30}{28} to lowest terms by extracting and canceling out 2.
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