11 = \frac { 5 } { 2,5 } + b
Solve for b
b=9
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11=\frac{50}{25}+b
Expand \frac{5}{2,5} by multiplying both numerator and the denominator by 10.
11=2+b
Divide 50 by 25 to get 2.
2+b=11
Swap sides so that all variable terms are on the left hand side.
b=11-2
Subtract 2 from both sides.
b=9
Subtract 2 from 11 to get 9.
Examples
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Limits
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