So firstly, you want to foil -7(y+6) and 3(5-y):
Next, combine like terms:
Next, add 7y on both sides:
Next, subtract 15 on both sides:
Lastly, divide both sides by 4, and your answer will be -6 < y
Answer:
Perimeter=2L+2w
P=2(x+1)+2(x-3)
P=2x+2+2x-6
P=4x-4
Area=Lxw
A=(x+1)x(x-3)
A=x^2-3x+x-3
A=x^2-2x-3
Step-by-step explanation:
I don't have one :v