Question

Rezolvati inecuatiile
5*3+ x ≤ 7*10
97 - x > 13*7
8*(153 - 5*25)- x ≥ 6*30

Answer 1

15+x ≤ 70/-15
x ≤ 55
S={55,54,53,52,51,.....0}
97-x>91/+97
x>188
S={189,190,191,192,....}
8*(153-125)-x ≥ 180
8*18-x>180
144-x>180/+144
x>324
S={325,326....}