Can someone please help me I really need help help me thank you

Answer:
Step-by-Step Explanation:
Perimeter = 75
Sides:
2x + 3
3x + 4
2x - 9
75 = 2x + 3 + 3x + 4 + 2x - 9
2x + 3 + 3x + 4 + 2x - 9 = 7x - 2
75 = 7x - 2
75 = 7x - 2
+2 +2
77 = 7x
77 = 7x
/7 /7
2x + 3 = 2(11) + 3 = 22 + 3 = 25
3x + 4 = 3(11) + 4 = 33 + 4 = 37
2x - 9 = 2(11) - 9 = 22 - 9 = 13