Answer:
42
4 to 10 is 6
-3 to -10 is 7
7x6=42
its is 38.6
Step-by-step explanation:
10+2x= the sum (anything could be put here)
Well sum is automatically addition
Doubleing a number is basically multiplying it by 2
so
10+2x= whatever youw ant to put here
i think it 54 on the other side