Question

(5.4y+8.3)*2.1=23.1 решение

Answer 1

(5,4y+8.3)*2.1=23.1
5.4y+8.3=23.1:2,1
5.4y+8.3=11
5.4y=11-8.3
5.4y=2.7
y=2.7:5.4
y=0.5