Question

Solve: |x/3+1|=6
A.{-7, 15}
B.{-21, 15}
C.{7, 15}
D.{-15, 21}

Answer 1

B.

Answer 2

-21/3 = -7, and -7 +1 = -6, and |-6| = 6

Answer 3

similarly, 15/3 = 5, 5+1 = 6, and |6| = 6

Answer 4

\[|\frac{x}{3}+1|=6\]
\[\frac{x}{3}+1=6\] or
\[\frac{x}{3}+1=-6\]

solve these

Answer 5

b