Question

Solve the inequality 21 - z < 19


Select the best answer from the choices provided.



z < 2>



z > 4



z > 2



z < 4>

Answer 1

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

21-z-(19)<0

Answer 2

Step 2 :

Solve 2-z < 0
2.1 Multiply both sides by (-1) Flip the inequality sign since you are multiplying by a negative number z-2 > 0

Solve Basic Inequality :

2.2 Add 2 to both sides

z > 2
Inequality Plot :

2.3 Inequality plot for

-z + 2.000 < 0

Answer 3

your answer is going to be z > 2