Answer:
[tex]KL=23[/tex]
Step-by-step explanation:
We are given the length of the whole line and its two halves. Since JK and KL make up the line JL, adding them together would make the line JL.
[tex](4x+3)+(4x+2) = 45[/tex]
[tex]8x+5=45[/tex]
[tex]8x=40[/tex]
[tex]x=5[/tex]
Now we can plug the value of [tex]x[/tex] back into the expression we were given for the line KL.
[tex]4(5)+3[/tex]
[tex]23[/tex]
