Given the following system, what should the second equation be multiplied by so that x is eliminated? 4x−y=9

x+3y=12

answers:
4

−13

13

−4

D.  -4

Step-by-step explanation:

I just did the quick check.  The other person is incorrect.

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

r = 78539458390583095803458309458039485093485 or just 3

step-by-step explanation: