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y=\frac{x}{8}+\frac{9}{2}
Reduce the fraction \frac{36}{8} to lowest terms by extracting and canceling out 4.
y=\frac{x}{8}+\frac{9\times 4}{8}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 8 and 2 is 8. Multiply \frac{9}{2} times \frac{4}{4}.
y=\frac{x+9\times 4}{8}
Since \frac{x}{8} and \frac{9\times 4}{8} have the same denominator, add them by adding their numerators.
y=\frac{x+36}{8}
Do the multiplications in x+9\times 4.
y=\frac{1}{8}x+\frac{9}{2}
Divide each term of x+36 by 8 to get \frac{1}{8}x+\frac{9}{2}.
\frac{1}{8}x+\frac{9}{2}=y
Swap sides so that all variable terms are on the left hand side.
\frac{1}{8}x=y-\frac{9}{2}
Subtract \frac{9}{2} from both sides.
\frac{\frac{1}{8}x}{\frac{1}{8}}=\frac{y-\frac{9}{2}}{\frac{1}{8}}
Multiply both sides by 8.
x=\frac{y-\frac{9}{2}}{\frac{1}{8}}
Dividing by \frac{1}{8} undoes the multiplication by \frac{1}{8}.
x=8y-36
Divide y-\frac{9}{2} by \frac{1}{8} by multiplying y-\frac{9}{2} by the reciprocal of \frac{1}{8}.
y=\frac{x}{8}+\frac{9}{2}
Reduce the fraction \frac{36}{8} to lowest terms by extracting and canceling out 4.
y=\frac{x}{8}+\frac{9\times 4}{8}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 8 and 2 is 8. Multiply \frac{9}{2} times \frac{4}{4}.
y=\frac{x+9\times 4}{8}
Since \frac{x}{8} and \frac{9\times 4}{8} have the same denominator, add them by adding their numerators.
y=\frac{x+36}{8}
Do the multiplications in x+9\times 4.
y=\frac{1}{8}x+\frac{9}{2}
Divide each term of x+36 by 8 to get \frac{1}{8}x+\frac{9}{2}.