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4x-2.5>0.5
2.3×x-1<22
7.5×x+3 <18
5x-4.5 <0.5

Răspuns :

Girl9
4x-2.5>0.5
4x>0.5+2.5
4x>3
x>3:4
x>0.75

2.3*x-1<22
2.3x<22+1
2.3x<23
x<23:2.3
x<10

7.5*x+3<18
7.5x<18-3
7.5x<15
x<15:7.5
x<2

5x-4.5<0.5
5x<0.5+4.5
5x<5
x<5:5
x<1



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