Solve for x
x=-\frac{2}{21}\approx -0.095238095
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-42x=4
Add 4 to both sides. Anything plus zero gives itself.
x=\frac{4}{-42}
Divide both sides by -42.
x=-\frac{2}{21}
Reduce the fraction \frac{4}{-42} to lowest terms by extracting and canceling out 2.
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