Question

What is the solution set of |2x – 3| – 8 = –1?

7 or –7

5 or –2

5 or 2

No solution

Answer 1

5 or 2

Answer 2

Add 8 to both sides first.

\( \color{Black}{\Rightarrow |2x - 3| = 7 }\)

So, \(2x - 3 = \pm 7\)

Answer 3

Two equations to solve here:

\( \color{Black}{\Rightarrow 2x - 3 = 7 }\)
\( \color{Black}{\Rightarrow 2 x - 3 = -7 }\)

Answer 4

why dont you go for option checking instead of actually solving!! (saves time) ;)

Answer 5

^that depends lol

Answer 6

means 2x-3=7 or -7
hence solving it we get
2x=10 or -4
giving
x=5 or -2

Answer 7

some people can solve this faster than checking blindly ;)

Answer 8

I think that understanding is the key factor and solving it is the best way to understand the problem. I prefer solving rather than checking.

Answer 9

hmmn.. :|