Question

rezolvati , in nr. naturale , inecuatiile :
a) 70+x-5•11<29
b) 1+4+9>2•x+6
c) x+10•x+100•x<777-3•111
Va rog ajutatima ! ◉‿◉

Answer 1

a)70+x-55<29
70+x<29+55
70+x<84
x5<84-70
x<14
x apartine multimii{0,1,2,3....13}
b)14>2*x+6
2x<14-6
2x<8
x<4 
x aprtine multimii{0,1,2,3}
c)111x<777-333
111x<444
x<444:111
x<4
x apartine multimii{0,1,2,3}