LM+ MN=LN
LM + MN = 143
7y+9+3y+4=143
7y=9-9+3y+4-4= 143-9-4
7y+3y=130
10y=130
10y/10=130/10
y=13
Suppose M is between L and N. Use the Segment Addition Postulate to solve for the variable. Then fine the lenghts of LM, MN, and LN.
LM=7y+9
MN=3y+4
LN=143
Please tell me how you got your answers.
1 answer