Răspuns :
Salut !
[tex]2x - 5 \geq 15 \\2x \geq 15 + 5 \\2x \geq 20 \\x \geq 20 : 2 \\x \geq 10 \\Deci ........[/tex]
X mai mare sau egal cu 10
X = { 10,11,12,13 etc
Succes !
#Albert1001
Salut !
[tex]2x - 5 \geq 15 \\2x \geq 15 + 5 \\2x \geq 20 \\x \geq 20 : 2 \\x \geq 10 \\Deci ........[/tex]
X mai mare sau egal cu 10
X = { 10,11,12,13 etc
Succes !
#Albert1001