Question

/-знак для дроби
23*x=49*(75-x)
срооочно

Answer 1

2/3*х=4/9*(75-х)
2/3х=100/3-4/9х
2/3х+4/9х=100/3
6/9х+4/9х=100/3
10/9х=100/3
х=100/3:10/9                  100/3:10/9=100/3*9/10=30
x=30