If 7x + 3

Question

If 7x + 3 < 5x + 9 then x ∈  (A)  (-∞, 3] (B) (-∞, ∞) (C) (-∞, 3) (D) [3, ∞)

Tardigrade Admin · Accepted Answer

We have 7x + 3 < 5x + 9 or 2x < 6 or x < 3 Thus, all real numbers which are less than 3 is the solution set of the given inequality i.e., x ∈ (-∞, 3).

Q. If $7 x + 3 < 5 x + 9$ then $x \in$

$(- \infty$ , $3]$

$(- \infty$ , $\infty)$

$(- \infty$ , $3)$

$[3$ , $\infty$ )

We have $7 x + 3 < 5 x + 9$ or $2 x < 6$ or $x < 3$
Thus, all real numbers which are less than $3$ is the solution set of the given inequality i.e., $x \in (- \infty$ , $3)$ .

Q. If 7x+3<5x+9 then x∈

(−∞, 3]

(−∞, ∞)

(−∞, 3)

[3, ∞)