Answer:
Step-by-step explanation:
If we subtract 3 from the unknown number, we get just as much as if we subtracted 7 from the unknown number and we multiplied the result by 2
Answer:

Explanation:

<u>using the formula:</u>

X is What makes The answer 8 so you would have to find each number and see which fits whatever equals 8 is the answer.
Hope this helps!