From the given graph, we can tell kl=lm
therefore,
3x + 2 = 5x - 10
3x+2-2=5x-10-2
subtract 2 from both sides.
3x+ 0 =5x-12
3x=5x-12
3x-5x=5x-5x-12
subtract 5x from both sides.
-2x=0-12
-2x=-12
(-2x)/-2=-12/-2
divide both sides by -2.
1x= 6 -12/-2=6
and of course the -2 and -2 cancel on left side leaving 1x.
x=6
KL = 3x+2 = 20 units
