Answer:
x = 28/3
y = 7/3
Step-by-step explanation:
If the triangles are congruent, then corresponding sides are equal.
x = 4y
x + 1 = y + 8
Solve the system of equations using substitution or elimination. Using substitution:
4y + 1 = y + 8
3y = 7
y = 7/3
Solving for x:
x = 28/3
