Answer:
x=6, y=63
Step-by-step explanation:
since both equal y, they equal each other-
8x+15=x+57
7x=42
x=6
then to solve for y-
y=(6)+57
y=63
5/6 = 0.833333 .... (non-terminating)
Answer: this is what i know
Houghton Mifflin Harcourt Publishing Company Holt McDougal Analytic Geometry Challenge 1. Triangle Sum 2. m 7 3. 90° 4. m 5 5. 180° 6. 180°