Question

(1,5) -5x+6y=25
-7x+8y=33

Answer 1

x=-19 and Y=-25/2

Explanation:

-5x+6y+5=25

-5x+6y+5+6y=25+-6y(add 6 to both sides)

-5x+5=6y+25

-5x+5+-5=-6y+25+-5(add -5 to both sides)

-5x=-6y+20

-5x=-6y+20

-5 -5 (divide both sides by -5)