What’s the answer need it for a test

x=-129

y=-9

Step-by-step explanation:

2x=-78-20y

-x=-51-20y

2x-x=-78-51

x=-129

-(-129)=-51-20y

129+51=-20y

180=-20y

y=180:(-20)=-9

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|