1. y = x + 9
x - y = - 9 equation in the form ax + by = c
a = 1
b = - 1
c = - 9
2. y = 3x - 7
3x - y = 7 equation in the form ax + by = c
a = 3
b = - 1
c = 7
3. y = -4x + 2
-4x - y = - 2
4x + y = 2 equation in the form ax + by = c
a = 4
b = 1
c =2
4. y = - 6x - 5
-6x - y = 5
6x + y = -5 equation in the form ax + by = c
a = 6
b = 1
c = -5
5. y = 2/3x + 1
3y - 2x = 3
-2x + 3y = 3
2x - 3y = -3 equation in the form ax + by = c
a = 2
b = -3
c = -3