I am not sure but I would say either step 2 or 4 but I am not 100% sure I hope you do well. Good Luck:)
x+3x+3x=21
7x=21
x=3
3, 9, 9=21
the answers are 3, 9, and 9
Draw out a number line. Make sure 4 is on the number line. At this location, plot an open circle. The open circle indicates "do not include this endpoint as part of the solution set". We shade to the right of this open circle.
Visually this describes all real numbers that are larger than 4.
Answer:
Kindly rewrite the question clearly.
The prime factorization for 135 is 3,3,3, and 5.