SOLUTION: What is the length of AB in a triangle using x+4+x+x+5= 21 i know that you combine the x'x and you get 3x then you subtract 4 from both the 4 and 5 and you get 1 the divide 3/20 a

Question 1007456: What is the length of AB in a triangle using x+4+x+x+5= 21 i know that you combine the x'x and you get 3x then you subtract 4 from both the 4 and 5 and you get 1 the divide 3/20 and you get 6 from there i'm not sure what to do with the 6 when you go to find x+4=
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

if , then
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