Solve this system of linear equation. separate the x- and y-values with a comma. 15x+4y=-80 5x+5y=1

(x, y) = (-404/55, 83/11)

Step-by-step explanation:

15x + 4y = -80

5x + 5y = 1

Multiplying both side of 2nd equation by 3:

=>

15x + 4y = -80

15x + 15y = 3

Subtracting the 1st equation from 2nd equation:

=>

11y =  83

Dividing both sides by 11 to work out y:

=> y = 83/11

Substituting y back into 2nd equation to work out x:

=> 5x + 5(83/11) = 1

=> 5x + 415/11 = 1

=> 5x = 1 - 415/11

=> 5x = -404/11

=> x = (-404/11)/5

=> x = -404/55

=> (x, y) = (-404/55, 83/11)

Hope this helps!

answer:

step-by-step explanation:

step-by-step explanation: