Solve 3x - x + 2 = 12.
O 1) – 5
O 2) 4
0 3 7
4) 5

4) 5

Step-by-step explanation:

3x-x+2=12

First, you combine similar terms, so 3x-x which is 2x.

Second, you subtract 2 on both sides which is going to give you 2x=10.

Finally, you divide by 2 on both sides, so the final answer is going to be x=5.

what is the original number? you forgot to add it.

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.