Question

rezolvati ecuatiile in Q​

Answer 1

Răspuns:

$c)2x - 1 = 5 = > 2x = 1 + 5 = 6 = > 2x = 6 = > x = 6 \div 2 = 3 = > x = 3$

$d)(2x + 1 )\div 3 = 3 = > 2x + 1 = 3 \times 3 = 9= > 2x = 9 = x = 4$

Answer 2

Răspuns:

c 1.2x-1=5

2x=5-1=4

x=2

2. 2x-1=-5

2x=-5-1=-6

x=-3

d 1. 2x+1=9

2x=9-1=8

x=4

2. 2x+1=-9

2x=-9-1=-10

x=-5

La d nu stiu:)

(Coroana)