Question

|4x + 7| = 9

Answer 1

\[4x+7=9\]
or
\[4x+7=-9\]
Solve for x in both equations.

Answer 2

4x + 7 = 9
----> 4x = 2
----->x = 1/2

Answer 3

and

Answer 4

u can use azteck's method

Answer 5

Check for extraneous solutions if there is any by subbing the x-values into original equation to see if it abides the equation. @ankitisphysicist That's not how you solve absolute value equations. Azteck's method is not ankitisphysicist's method. ankitisphysicist's method involves only half the solution.

Answer 6

yeah.........thnx @azteck