Question

Cat face |2x-3|
X={1;2;3;4}

Answer 1

x={1;2;3;4}

|2x-3|=

Daca x=1

|2-3|=|-1|=1

Daca x=2

|4-3|=|1|=1

Daca x=3

|6-3|=|3|=3

Daca x=4

|8-3|=|5|=5

Succes!