Question

Solve |2x + 1| = 10

Answer 1

\[|y|=a\implies y=a \mbox{ or } y=-a\]

Answer 2

You have two equations:
2x + 1 = 10
and
2x + 1 = -10
Solve for x.

Answer 3

solve two equation
\[2x+1=10\] and \[2x+1=-10\] separately and get two separate answers

Answer 4

\[|2x+1|=10\implies2x+1=10\mbox{ or }2x+1=-10\]

Answer 5

so would the answer be {9/2, 11/2}