Answer:
8) A 9) B
Explanation:
For question 8 just combine like terms, combine the numbers that have the same variables. Number 9, distribute the 3 to the rest of the equation.
Hope this helped :)
It's
9a-3b
because 3×3a is 9a and 3×-b is -3b hope this helps
9.2m questions
11.9m answers