Решите уравнение 0.2 * (4-х) = 0.8 3* (1.5+ х) = 9.3

Question

Решите уравнение
0.2 * (4-х) = 0.8
3* (1.5+ х) = 9.3

Answer 1

0.2*(4-х)=0.8
0.8-х=0.8
х=0.8-0.8
х=0

3(1.5+х)=9.3
4.5+х=9.3
х=9.3-4.5
3х=4.8
1х=1.6

Comments

1) 0,2(4-х)=0.8; 0.8-0.2х=0.8; -0.2х=0.8-0.8;х=0: 2) 3(1.5+х)=9.3; 4.5+3х=9.3; 3х=9.3-4.5; 3х

---

3х=4.8;х=1,6

---

Спасибо затупил :