Question

решите уравнение 1.8+2.4×(x+0.2)=2.16

Answer 1

1,8+2,4х+0,48=2,16
2,28+2,4х=2,16
2,4х=2,16-2,28
2,4х=-0,12
х=-0,12:2,4
х=-0,05