Solve the system using the linear combination method. first equation. 5 x plus y equals 5 second equation. 10 x plus 3 y equals 20

C: 1, -5

Hope this helps!

Step-by-step explanation:

The x-coefficients have a nice ratio, and one of them is negative. That makes it easy to eliminate x by multiplying the first equation by 4 and adding the second equation:

4(5x+3y) +(-20x-7y) = 4(-10) +(15)

5y = -25 . . . . . simplify

y = -5 . . . . . . . divide by 5

Substitute this result into either equation to find x. I choose to use the first equation.

5x +3(-5) = -10

5x = 5 . . . . . . add 15

x = 1 . . . . . . . divide by 5

The solution is (x, y) = (1, -5).

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

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|