The Answer is 21 because 7 and 3 can go in it as well
2(x+7)3X
I think... look it up though to be sure
I think one of the answers would be 9.82
Answer:
Step 3 contains error.
Step-by-step explanation:
The given equation is :

Step 1.
Cross multiplying,

Step 2.
Subtract 9 from both sides

Step 3.
Cross multiplying

So, there is an error in step 3. The correct answer should be 45.