Question

Clare made an error when solving -4x + 3 < 23

Answer 1

Answer:

Clare didn't change the inequality symbol in the last step to >

Step-by-step explanation:

Given inequality is:

$-4x+3$

Clare's error was in the last step where she multiplied the inequality by -4 to remove the minus sign with x. When an in equality is multiplied/Divided by a negative number then the sign of inequality is reversed. < is changed to > and > is changed to less than.

The answer must have been x > -5

The correct way to solve is:

$-4x+3$

Hence,

Clare didn't change the inequality symbol in the last step to >