Question

Solution of the inequality $x+5>15,$ is:

• A. $x<10$
• B. $x=10$
• C. $x>15$
• D. $x>10$

Answer 1

The correct option is D $x>10$

Given, $x+5>15$

Subtract both sides of the inequality by 5 to eliminate 5 on the left side of the inequality.
Also, subtracting the same number from each side of an inequality does not change the direction of the inequality symbol.
$\Rightarrow x+5-5>15-5\Rightarrow x>10$

Hence, solution of the inequality $x+5>15$ is $x>10.$