Answer:
-67x + 10
Step-by-step explanation:
3x + 10(1 - 7x)
(use distributive property)
3x + 10 - 70x
(simplify)
3x - 70x + 10
-67x + 10
W=9ft.
since the with is 9 that means the length is 27.then add up the sides to get the perimeter. 9+9+27+27=72
X+(x+1)=y. The first integer would be x, and the second would be one more than x, so x+1. I'm not sure if there's a specific number they are supposed to total, so I just set it equal to y. If there is a specific number, just replace y with that number. Hope this helps!