Question

5x-15 mai mic sau egal cu 45​

Answer 1

5x-15<_45 |+15

5x<_60 |:5

x<_12

x={ 0,1,2,...,12}

Answer 2

$5x - 15 \leqslant 45 \\ 5x \leqslant 60 \\ x \leqslant 12$

S:{....10,11,12}