34,98x - 33.98x + 24x = 87.29
25х=87,29 х=3,4916........................
34,98x-33,98x+24x=87,29
25х=87,29
х=87,29:25
х=3,4916
проверка
34,98*3,4916-33,98*3,4916+24*3,4916=87,29
87,29=87,29