SOLUTION: Complete the 2 column proof. Given m<rst = 5x and m<uvw = 7x <rstand <uvw are supplementary. Prove x=15 m<rst=5x and m<uvw=7x <rst and <uvw are supplementary given

Algebra ->  Geometry-proofs -> SOLUTION: Complete the 2 column proof. Given m<rst = 5x and m<uvw = 7x <rstand <uvw are supplementary. Prove x=15 m<rst=5x and m<uvw=7x <rst and <uvw are supplementary given       Log On


   

Question 1009188: Complete the 2 column proof.
Given m Prove x=15
m m 5x+7x = 180 ?
12x=180 ?
x=15 ?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Oh I see, you want the reasons for these...
5x+7x = 180 ? By substitution
12x=180 ? Addition of like terms.
x=15 ? Division property of equality.