Question

nr nat n din egalitatea 27 -(n•24+1):7=20​

Answer 1

Răspuns:

$27 - (n \times 24 + 1) \div 7 = 20 \\ 27 - (24n + 1) \div 7 = 20 \\ 27 - \frac{24n + 1}{7} = 20 \\ 189 - (24n + 1) = 140 \\ 189 - 24n - 1 = 140 \\ 188 - 24n = 140 \\ - 24 = - 48 \\ n = 2$