Answer C or the third one
It's 7.4 because the 3 doesn't round the 4 up.
Answer:

Step-by-step explanation:
So we have the equation:

And we want to solve for x. In other words, we want to isolate the x-variable.
So, add 2y to both sides of the equation.

On the left, the 2y cancel. Simplify the right:

And we're done!
Answer:
The answer is the last one
Answer:
10
Step-by-step explanation: