Question

Am nevoie urgent va rog
|2x - 3|=7​

Answer 1

Răspuns:

x = 5

x = - 2

Explicație pas cu pas:

|2x - 3| = 7

2x - 3 = 7

2x = 7 + 3

2x = 10

x = 10 : 2

x = 5 ​

2x - 3 = - 7

2x = - 7 + 3

2x = - 4

x = - 4 : 2

x = - 2

Answer 2

|2x-3|=7

1. 2x-3= -7

2x= -7+3

2x= -4

x= -4:2

x= -2

2. 2x-3=7

2x=7+3

2x=10

x=10:2

x=5

x∈{-2,5}