
Tammy P. answered 06/07/19
This Math Tutor loves Algebra!
Draw a line that starts at A and ends at C. Place point B somewhere along that line. You know from the problem, that the distance from A to C is 28. You're going to add together AB plus BC to equal AC.
2x + (x-2) = 28
Now solve for x.
3x - 2 = 28
+2 +2
3x = 30
divide both sides by 3, x = 10
Hope that helps!