Question

A teacher writes the inequality

x÷7>14 on the board. A student solves the inequality incorrectly and gets the result x>2. What is the correct result. What is the student's error?

Answer 1

To solve the inequality x÷7>14, we need to first isolate the variable x on one side of the inequality. To do this, we can multiply both sides of the inequality by 7, which gives us 7x>98. The correct result is therefore x>14.

The student made an error by forgetting to divide both sides of the inequality by 7. As a result, they obtained the incorrect result x>2.

Explanation: