\frac { 3 + 0.2 x } { 0.2 } + 30 \% = 0.75
Solve for x
x=-14.55
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\frac{3+0.2x}{0.2}+\frac{3}{10}=0.75
Reduce the fraction \frac{30}{100} to lowest terms by extracting and canceling out 10.
\frac{3}{0.2}+\frac{0.2x}{0.2}+\frac{3}{10}=0.75
Divide each term of 3+0.2x by 0.2 to get \frac{3}{0.2}+\frac{0.2x}{0.2}.
\frac{30}{2}+\frac{0.2x}{0.2}+\frac{3}{10}=0.75
Expand \frac{3}{0.2} by multiplying both numerator and the denominator by 10.
15+\frac{0.2x}{0.2}+\frac{3}{10}=0.75
Divide 30 by 2 to get 15.
15+x+\frac{3}{10}=0.75
Cancel out 0.2 and 0.2.
\frac{150}{10}+x+\frac{3}{10}=0.75
Convert 15 to fraction \frac{150}{10}.
\frac{150+3}{10}+x=0.75
Since \frac{150}{10} and \frac{3}{10} have the same denominator, add them by adding their numerators.
\frac{153}{10}+x=0.75
Add 150 and 3 to get 153.
x=0.75-\frac{153}{10}
Subtract \frac{153}{10} from both sides.
x=\frac{3}{4}-\frac{153}{10}
Convert decimal number 0.75 to fraction \frac{75}{100}. Reduce the fraction \frac{75}{100} to lowest terms by extracting and canceling out 25.
x=\frac{15}{20}-\frac{306}{20}
Least common multiple of 4 and 10 is 20. Convert \frac{3}{4} and \frac{153}{10} to fractions with denominator 20.
x=\frac{15-306}{20}
Since \frac{15}{20} and \frac{306}{20} have the same denominator, subtract them by subtracting their numerators.
x=-\frac{291}{20}
Subtract 306 from 15 to get -291.
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