Solve for x
x = \frac{21}{4} = 5\frac{1}{4} = 5.25
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x=\frac{7}{4}\times 3
Multiply both sides by 3.
x=\frac{7\times 3}{4}
Express \frac{7}{4}\times 3 as a single fraction.
x=\frac{21}{4}
Multiply 7 and 3 to get 21.
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