Question

if ∈ Z, find the solution set of − < + < −.​

Answer 1

Answer:

Given 4−3x≤13+x,

=−4x≤9

=−x≤

4

9

=x≥−

4

9

=x≥−4.5, Sincex∈I, x≥[−4.5]=x≥−4

Given 10−x≤5−4x,

3x≤−5

=x≤

3

−5

=x≤−1.6

Since x∈I, x≤−1

The range in which x belongs to is marked in blue colour in the number line.