To solve for x and y, isolate each variable and simplify your equation:
Solve for x:
2x+7=3y-1 (Subtract 7 on each side)
2x=3y-8 (Divide by 2 on each side)
x=

Solve for y:
2x+7=3y-1
2x+8=3y (Add 1 on each side)

=y (Divide by 3)
y=

~I hope this helps!~
Answer:
6 is in ten place and its place value is 60, 3 is in ones place and its place value is 3.
Step-by-step explanation:
Each interior angle=140°
(n-2)180°/n=140°
180°n-360°/n=140°
180°n-360°=140°n
180°-140°=360°
40°n=360°
n=360°/40°
n=9
Hence, the number of sides of the polygon is 9.
It is nonagon .