Answer:
164
Step-by-step explanation:
Since x is 12, you add that with 3 so you get 15, then multiply it by 2 which you get 30
Answer:
the answer is a+b
Step-by-step explanation:
7(3a-2b) +5(3b-4a)
21a-14b+15b-20a
a+b
Answer:
16
Step-by-step explanation:
If you replace the variables with what they equal and multiply then you should get 6+10 which equals 16.