Solve for j
j = -\frac{63}{2} = -31\frac{1}{2} = -31.5
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j=-21\times \frac{3}{2}
Multiply both sides by \frac{3}{2}, the reciprocal of \frac{2}{3}.
j=\frac{-21\times 3}{2}
Express -21\times \frac{3}{2} as a single fraction.
j=\frac{-63}{2}
Multiply -21 and 3 to get -63.
j=-\frac{63}{2}
Fraction \frac{-63}{2} can be rewritten as -\frac{63}{2} by extracting the negative sign.
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