Add parentheses to the expression so that its value is 6:

3 + 9 ÷ 9 - 6

3 + 9 ÷ (9 - 6)

Step-by-step explanation:

3 + 9 ÷ 9 - 6

3 + 9 ÷ (9 - 6) = 3 + 9 ÷ 3 = 3 + 3 = 5

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.