Question

Question 3 of 10
Which of the following is(are) the solution(s) to |15x+2| = 8?

Answer 1

b

Explanation:

|5x+2|=8

1) |5×(-2)+2|=8

|-10+2|=8

|-8|=8

8=8

2) |5×6/5+2|=8

|6+2|=8

|8|=8

8=8

Answer 2

x = 6/5 x = -2

Explanation:

|5x+2| = 8

There are 2 solutions

5x+2 = 8 and 5x+2 = -8

Subtract 2 from each side

5x+2 -2 = 8-2 and 5x+2-2 = -8-2

5x= 6 5x = -10

Divide by 5

5x/5 = 6/5 5x/5 = -10/5

x = 6/5 x = -2