7 \% +3=x
Solve for x
x = \frac{307}{100} = 3\frac{7}{100} = 3.07
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\frac{7}{100}+\frac{300}{100}=x
Convert 3 to fraction \frac{300}{100}.
\frac{7+300}{100}=x
Since \frac{7}{100} and \frac{300}{100} have the same denominator, add them by adding their numerators.
\frac{307}{100}=x
Add 7 and 300 to get 307.
x=\frac{307}{100}
Swap sides so that all variable terms are on the left hand side.
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