a = 3a + 12
- 3a - 3a
-2a = 12
-2 -2
a = -6
Answer:
Step-by-step explanation:
When we remove coffee beans, then the quantity of beans reduces. So, we have to subtract to find the remaining coffee beans.
q = 1500 - n
Step-by-step explanation:
Multiply the first equation by 7 and the second by 2
Answer:
k = 3/7
Step-by-step explanation:
121212kkk = 848484
divide each side by 121212
kkk = 7
3k = 7
k = 3/7
