Răspuns:[tex]\bf \red{ \underline{x = 5}}[/tex]
Explicație pas cu pas:
[tex] \bf 5 \cdot(x+3)=2 \cdot(5x-5)[/tex]
[tex]\bf 5x+15=10x-10[/tex]
[tex]\bf 5x+15 + 10 =10x[/tex]
[tex]\bf 5x+25 =10x[/tex]
[tex]\bf 25 =10x - 5x[/tex]
[tex]\bf 25 =5x[/tex]
[tex]\bf x = 25: 5[/tex]
[tex]\bf \red{ \underline{x = 5}}[/tex]
==pav38==
