8

But wait
How could they form equations if they don’t know math?
Or even numbers?
Or even know the values of each number?
Or even know what numbers are?
Or even know numbers exist?

If the concept / understanding of math didn't exist that question wouldnt even exist

However i am grateful the concept of math exists (though I hate doing it) because it's allowed us to advance beyond what any other creature we know of possibly could

It 35, easy

67

(6 - 5) + 7

((1 + 1 + 1 + 1 + 1 + 1 ) - (1 + 1 + 1 + 1 + 1))
+ (1 + 1 + 1 + 1 + 1 + 1 + 1)