Step-by-step explanation:
The midline of a triangle is a segment connecting the midpoints of two sides. The middle line of the triangle is parallel to the third side and equal to half of that side.
1)
8x-18=2*(2x+5)
8x-18=4x+10
8x-4x-18=4x-4x+10
4x-18=10
4x-18+18=10+18
4x=28
Divide both sides of the equation by 4:
x=7
2)
JL=8*7-18
JL=56-18
JL=38
Answer: x=7
JL=38
