Answer:
8
Step-by-step explanation:
You would add 3 on both sides
3x - 3 + 3 = 13 + 3
3x = 16
I think it's D.
Because when 3x + y = 9,
it is easier to solve for y as y = 9 - 3x
Answer:
The correct answer is B
Step-by-step explanation:
When you have a negative exponent and want to make it positive, all you need to do it to move the whole term to the denominator and change the sign of the exponent.