Solve for x
x=-8.4
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\frac{-8.4}{4}=x+6.3
Divide both sides by 4.
\frac{-84}{40}=x+6.3
Expand \frac{-8.4}{4} by multiplying both numerator and the denominator by 10.
-\frac{21}{10}=x+6.3
Reduce the fraction \frac{-84}{40} to lowest terms by extracting and canceling out 4.
x+6.3=-\frac{21}{10}
Swap sides so that all variable terms are on the left hand side.
x=-\frac{21}{10}-6.3
Subtract 6.3 from both sides.
x=-\frac{21}{10}-\frac{63}{10}
Convert decimal number 6.3 to fraction \frac{63}{10}.
x=\frac{-21-63}{10}
Since -\frac{21}{10} and \frac{63}{10} have the same denominator, subtract them by subtracting their numerators.
x=\frac{-84}{10}
Subtract 63 from -21 to get -84.
x=-\frac{42}{5}
Reduce the fraction \frac{-84}{10} to lowest terms by extracting and canceling out 2.
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