\frac { 90 } { 1,1 } = x
Solve for x
x=\frac{900}{11}\approx 81,818181818
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\frac{900}{11}=x
Expand \frac{90}{1,1} by multiplying both numerator and the denominator by 10.
x=\frac{900}{11}
Swap sides so that all variable terms are on the left hand side.
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