Question

8. Rezolvă in R ecuațiile:​

Answer 1

Răspuns:

a) x-3=0

x=3

b)2x+10=0

2x= - 10

x= - 10 /2

x = - 5

c) 12x/5 =36/1

12x = 36*5

12x = 180

x = 180 / 12

x = 15

d) 3x - 5 = 1 + 3(x-2)

3x - 5 = 1 + 3x - 6

3x - 3x = 5 + 1 - 6

0=0

e) 2(3x + 1) - 2 = 5(x+2) + x - 3

6x + 2 - 2 = 5x + 10 + x - 3

6 x - 5x - x = 10 - 3 - 2 + 2