Решите уравненииа)3.2Х+5.6+5.8х=17.21б)3х+1.2х+6,7х=109в)6.7х + 1.9х +3.3х38.08

Question

Решите уравнении
а)3.2Х+5.6+5.8х=17.21
б)3х+1.2х+6,7х=109
в)6.7х + 1.9х +3.3х38.08

Answer 1

А) 3.2х+5.8х=17.21-5.6
9х=11.61
х=11.61÷9
х=1.29
б) 3х+1.2х+6.7х=109
10.9х=109
х=109÷10.9
х=10
в) 11.9х=38.08
х=38.08÷11.9
х=3.2