Answer:
z=3/7+4q/7
q= -3/4+7z/4
Step-by-step explanation:
You're on the right track. If they generated 380 less than 2012, then in 2013 they generated 9782-380 = 9402.
They used 10472 in 2012, so 10472+390 = 10862 used in 2013. now subtract used from produced to see how much they had to buy...
10862-10472 = 390
They had to buy 390khW from the power company.
5.25 is the answer my firmed
Answer:
7
Step-by-step explanation:
Answer:
3x+7
Step-by-step explanation:
4x+7-x=4x-x+7=3x+7