Answer:
12.3
Step-by-step explanation:
I'm not sure if this question was correctly transcribed but is it suppose to read find if x=15, find y = 6x+30 ?
If so then y = 120
The way it is written now, If x = 15 then 6x cannot equal 30 which is why I asked. Sorry if I'm not understanding the question.
5x+7x+10x-5x =17x
-3-20=-23
Ans: 17x-23
