Question

Надо решить уравнение 150=140• c+15/c-15

Answer 1

Ответ:

$150 = 140 \times \frac{c + 15}{c - 15} \\ \\ odz : \: c \: \: \: \: ne = 15 \\ \\ 150 = \frac{140(c + 15)}{x - 15} \\ \\ 150 = \frac{140c + 2100}{c - 15} \\ \\ 150(c - 15) = 140c + 2100 \\ 150c - 2250 = 140c + 2100 \\ 150c - 140c = 2100 + 2250 \\ 10c = 4350 \\ c = 4350 \div 10 \\ c = 435$