Justify each step used to simplify the expression.
1. 3x+2y-2x+3=3x-2x+2y+2
2. =(3x-2x)+2y+2
3. =(3-2)x+2y+2
4. =x+2y+2

See below.

Step-by-step explanation:

To simplify the expression use properties of algebra to combine like terms:

1. Expression                          3x-2x+2y+2            

2. Associative Property         (3x-2x)+2y+2

3.  GCF                                    (3-2)x+2y+2

4.  Subtraction                         x+2y+2

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.

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )