1.12(1+x \% )=1.2
Solve for x
x = \frac{50}{7} = 7\frac{1}{7} \approx 7.142857143
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1+\frac{x}{100}=\frac{1.2}{1.12}
Divide both sides by 1.12.
1+\frac{x}{100}=\frac{120}{112}
Expand \frac{1.2}{1.12} by multiplying both numerator and the denominator by 100.
1+\frac{x}{100}=\frac{15}{14}
Reduce the fraction \frac{120}{112} to lowest terms by extracting and canceling out 8.
700+7x=750
Multiply both sides of the equation by 700, the least common multiple of 100,14.
7x=750-700
Subtract 700 from both sides.
7x=50
Subtract 700 from 750 to get 50.
x=\frac{50}{7}
Divide both sides by 7.
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