Answer:
8x + 2y = 10 ==> y = -4x + 5
12x - 3y = -25 ==> y = 4x + 25/3
Explanation:
8x + 2y = 10 ==> solve for y
2y = 10 - 8x ==> subtract 8x on both sides
(2y = 10 - 8x) / 2 ==> divide the equation by 2 to make 2y into y
y = 5 - 4x ==> simplify
y = -4x + 5 ==> put the equation in y=mx+b form
12x - 3y = -25 ==> solve for y
12x = -25 + 3y ==> make y positive by adding 3y on both sides
12x + 25 = 3y ==> add 25 on both sides to isolate y
(3y = 12x + 25) / 3 ==> divide the equation by 3 to make 3y into y
y = 4x + 25/3 ==> simplify