Question

Solve: 7|x| = 42

–6 or 6
6
36
No solution

Answer 1

First you divide both sides by 7

7|x| = 42

7|x|/7 = 42/7

|x| = 6

Answer 2

then you'd use the rule that if |x| = k, for some positive number k, then x = k or x = -k

Answer 3

in this case, k = 6

Answer 4

Thank you so much :)

Answer 5

np