x -2y = 2
3x +y = 6 multiplie both sides by 2 => 6x +2y = 12
x -2y = 2
6x +2y = 12
------------------- assum the same terms
7x 0 = 14
x = 14/7
x = 2
Answer:
-3
Step-by-step explanation:
Given the points, we can see that as x increases by 4, y decreases by 4, which means the slope is -1. Working backwards from (5, -8), we can decrease x by 5 (and thus increase y by 5, since we're subtracting a negative) and add that to -8 to find the y-intercept = -3
Please provide complete question
Hi. I am assuming that you are asking the price of the comic book after the 20% mock-up. Is that correct?
If yes, you can simply change the percent to a decimal and then multiply it by the original price to see the price of the markup. Once you have that answer, you just add to the original cost.
Example: $3.95 x .20 = $0.79
$3.95 + $0.79 = $4.74
I hope this helps.
Take care,
Diana
180 = 80 + 2x + 3x
100 = 5x
x = 20