Question

Решите уравнение:
а] 12,7х+2,06х+0,24х=3030
б] [42,3-х]-4,08=17,3

Answer 1

а)

$15x = 3030 \\ x = \frac{3030}{15} \\ x = 202$

б)

$42.3 - x - 4.08 = 17.3 \\ - x = 17.3 + 4.08 - 42.3 \\ - x = - 20.92 \\ x = 20.92$