Question

y=2x+37
y=6x+21

How do I solve this? I know x is 8 but I plugged in y twice and got two different answers.

Answer 1

use substitution

6x+21 = 2x+37
4x = 16
x = 4

go back to either equation
y = 2(4) + 37
y = 45

how did you get x = 8 ?

Answer 2

nvm i got it

x= 4 and y=45

Answer 3

oh, I tried to use elimination, I subtracted the 2nd equation form the 1st

Answer 4

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100.

Find the percent of increase in the newspaper’s circulation from 2000 to 2001 and from 2001 to 2002.
Which period had a higher percent of increase, 2000 to 2001, or 2001 to 2002?

Anyone know??