Answer:
It might be 110 as the answer
13
Step-by-step explanation:
3 x 3 = 9
7 + 3 = 10
7 + ? = 3 + 7 + 3 + 7
7 + ? = 20
? = 13
the answer is (1,2).
Try 1 1/6
you subtract 7 from both sides