Question

Solve 5x - 3 < 7.

When (a) x is an integer (b) x is a real number

Answer 1

Given,

$5x-3<7$

$\Rightarrow 5x<7+3=10$

$\Rightarrow x<\frac{10}{5}=2$

$\therefore x<2$

$\left(a\right)x\in (-\infty ,2)$ for $x\in I$

$\left(b\right)x\in (-\infty ,2)$ for $x\in R$