What is the answer to 5 1/2-u= 9/4 ?

The answer to 5 1/2-u= 9/4 is u=3 1/4

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5 1/2-u= 9/4

5 \frac{1}{2} - u = \frac{9}{4}

u = 3 \frac{1}{4}

Decimal Notation

u = 3.25

Solution steps

5 \frac{1}{2} - u = \frac{9}{4}

Convert mixed numbers to improper fractions:

5 \frac{1}{2} = \frac{11}{2}

\frac{11}{2} - u = \frac{9}{4}

Move

\frac{11}{2}

to the right side

- u = - \frac{13}{4}

Divide both sides by

- 1

u = \frac{13}{4}

Convert improper fractions to mixed numbers:

\frac{13}{4} = 3 \frac{1}{4}

u = 3 \frac{1}{4}

- 12 f + 18 = - 8 f + 9 + 9

y, x - y = - 5

6 (x + 3) - (x + 4) = - 11

x, x - 5 y = 3

y, 3 x - y = 8