Question

se considera ecuatia 3x-7<23

Answer 1

3x mai mic 23+7
3x mai mic 30
x mai mic 10

x apartine (,1,2,3,4,5,6,7,8,9)

Answer 2

3x<7+23=30      x<30÷3=10   x<10     x∈{0,1, 2,3,4,5,6,7,8,9,}