Question 896860
A perimeter is a fence around.
A + B + C = 10x+8 (the given perimeter)
B = 3(x+2) (given) - distribute, B = 3x+6
C = 5x + 3 (given)
B+C = 8x + 9
A + B+C= 10x+8
Therefore A =
(10x+8)-(8x+9) = 2x-1
Now you have your three sides:
2x-1
3x+6
5x+3
Add them together to get the perimeter