The answer will have to be 4) a+b=3b so this is because a+b hads to equal something like a=1 ans b=2 then you will have a+b and you will always end up with 3ab or 3b

20/81 can not be simplified anymore so 20/81 is in simplest form.

New x = old x + 9

new y + old y - 22

**Answer it is 456y5445t6y5432**

**Step-by-step explanation:**

ww

**Answer:**

64.5

**Step-by-step explanation:**

43multiply by 6=258 ➗ by 4n

n= 64.5