12x - 3y = 6 2x - y = 2

x = 0

y = - 2

Step-by-step explanation:

to solve this simultaneous equation we are going to say

let

12x - 3y = 6 ... equation 1

2x - y = 2 ... equation 2

from equation 2

2x - y = 2 ... equation 2

2x - 2 = y

y = 2x - 2 ... equation 3

substitute the value of y into equation 1

12x - 3y = 6 ... equation 1

12x - 3 (2x - 2) = 6

12x - 6x + 6 = 6

6x + 6 = 6

6x = 6-6

6x = 0

divide both sides by 6

6x/6 = 0/6

x = 0

put the value of x = 0 into equation 3

y = 2x - 2 ... equation 3

y = 2 (0) - 2

y = 0 - 2

y = - 2

therefore from the solution the value of x is equal to zero (0) and the value of y is equal to - 2 respectively.