I’m not sure what the rule would be in this context, but those are just the squares of decreasing numbers starting at 10. It’s 10^2, then 9^2, then 8^2, and so on.
X = 9
Add both values 7 + 2 = 9, which is x.
9 - 2 = 7.
Answer:
x=26
Step-by-step explanation:
3x +12 =90
subtract 12 from each side
3x=78
divide 3 from each side
x=26
3r+1w=5
5r+1w=80
System of equations :)