Verified answer

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

34.98х - 33.98х + 24х = 87.29

 25х = 87.29

х = 87.29 : 25

х =  3.4916  

Проверяем:  34.98 * 3. 4916 = 122.13616

                      33.98 * 3. 4916 = 118.64456

                      24       *3. 4916 = 83. 7974

 122.13616 - 118.64456 = 3.4916 + 83.7974 = 87.29