I only need help for 6

Step-by-stepOn the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning. on the sixth day there were living animals.On the fifth day there was evening and there was morning
Answer:
I think CE is 42
Step-by-step explanation:
Take the x+3 and add the 3x-12 to find x. you should get x= -6. so then you d the same problem again but this time replace the x with -6 and you should get that your answer is 42.