Identical 81466

If the clerk at the buffet bought 15 identical loaves of bread, she would have 5 euros left in her wallet. If she bought 3 loaves of bread less, she would have 8.60 euros left. How many euros did she have in her wallet?

Correct answer:

x =  23 eur

Step-by-step explanation:

$$\begin{gathered} x-15a=5 \\ x-(15-3)a=8.60 \\ 3a=8.60-5 \\ a=(8.60-5)/3=\frac{6}{5}=1.2\text{eur} \\ x=5+15\cdot a=5+15\cdot 1.2=23\text{eur} \end{gathered}$$

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