How do you solve the equation |2x + 5| - 5 = -3, for x? Absolute value means distance away from zero.
|2x + 5| - 5 = -3 |2x + 5| = 2 {added 5 to each side} 2x + 5 = 2 or 2x + 5 = - 2 {the absolute value of 2x + 5 was 2, therefore it could be equal to 2 or -2} 2x = -3 or 2x = -7 {subtracted 5 from each equation} x = -3/2 or x = -7/2 {divided each equation by 2} x = -1.5 or x = -3.5 {put into decimal form} - Algebra House
0 Comments
Your comment will be posted after it is approved.
Leave a Reply. |
Algebra Examples Playlist
Examples
All
|