Givens
AB + BC = AC
AB = 2(x + 1)
BC = 3x + 1
AC = 4(x + 2)
Substitute and Solve
AB + BC = AC
2(x + 1) + 3x + 1 = 4(x + 2)     Remove the brackets on the left
2x + 2 + 3x + 1 = 4(x + 2)      Collect the like terms on the left
5x + 3  = 4(x + 2)                  Remove the brackets on the right.
5x + 3 = 4x + 8                     Subtract 4x from both sides.
5x - 4x + 3 = 8             
x + 3 = 8                               Subtract 3 from both sides
x =8 - 3
x = 5
Answers
AB=2(5 + 1) = 2 * 6 = 12
BC = 3x + 1 = 3*5 + 1 = 15 + 1 = 16
AC = 4(5 + 2) = 4*7 = 28 
 
        
             
        
        
        
Answer:
158 ribbons even half of one still counts.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Thnx
Step-by-step explanation: