Решите уравнение а) 2x - 3 (4-x) = 5- ( x - 1 ) б) 5x - 6 ( 2x + 7 ) = 13 - ( x + 1 )

Question

Решите уравнение
а) 2x - 3 (4-x) = 5- ( x - 1 )
б) 5x - 6 ( 2x + 7 ) = 13 - ( x + 1 )

Answer 1

A) 2x - 12 +3x = 5- (x-1)
5x + (x-1) = 17
6x = 18
x=18/3
x=3

Comments

б) 5x - 6 (2x+7) = 13-(x+1)

---

5x - 12x+7

---

щй

---

норм напиши) ок?

---

кароч X= 2.5

---

нет