Решите систему:

|4х+у=2у-4

|3х+у=х+1

помогите....

Вiдомо, що АВ=6. Знайдiть на прямiй АВ усi цi точки для яких сумми вiдстаней вiд кiнцiв вiдрiзка АВ = :                     

1)6;

2)5;

3)9.

Упростите выражения:
а) х - (2х + 3) + (2 - 0.5х) = ?
б) 2 + 3(y - одна третья) - 2(0.5 + у) = ?

Катеты треугольника относятся как 3:4, а высота делит гипотенузу на отрезки, разница между которыми 14 см. Найти площадь

(Fill in the gaps with SPEAK, SAY or TELL. Use them in the correct form.)

Brian Grenn, our English teacher, told us about his visit to Moscow. He ... us that he liked the Russian capital very much. "You can ask me any questions you like," he ... . "Do Russian students ... English well?" we asked. "Yes, Russian students ... English very well. They ... me much interesting about Moscow." He ... that we would visit Russian next year.