Х+(Х+179)+(Х+348)+348=1571
3x+875=1571 3x=696 X=232
Х + (х + 179) + (х + 348 ) + 348 = 1571 3х = 1571 - 348 - 348 - 179 3х = 696 х = 696 / 3 х = 232