Question

решите
8,3*х+2*х-60,5=300
(2,1-0,7*х):0,48=3,5

Answer 1

10.3х-60.5=300
10.3х=300+60.5
10.3х=360.5
х=360.5:10.3
х=35
Ответ:35
(2.1-0.7х)=3.5*0.48
(2.1-0.7х)=1.68
-0.7х=1.68-2.1
-0.7х=-0.42
х=-0.42:(-0.7)
х=0.6
Ответ:0.6