Question

Am nevoie doar de c

Answer 1

Răspuns:

3*[3*|2x+13|-12]=45

3*|2x+13|-12=-15

3*|2x+13|=-3

|2x+13|=-9

2x=-13-9

2x=-22

x=-22:2

x=-11

Answer 2

$\it 3[3(2x+13)-12]-19=26|_{+19} \Rightarrow 3[3(2x+13)-12]=45|_{:3} \Rightarrow \\ \\ \Rightarrow 3(2x+13)-12=15|_{+12} \Rightarrow 3(2x+13)=27|_{:3} \Rightarrow 2x+13=9|_{-13} \Rightarrow \\ \\ \Rightarrow 2x=-4|_{:2} \Rightarrow x=-2$