Find the solution of this system of equations.

Separate the x - and y-values with a comma.

x - 2y = - 6

x - y = 12

x = 30, y = 18

Step-by-step explanation:

Given the 2 equations

x - 2y = - 6 → (1)

x - y = 12 → (2)

Subtracting (2) from (1) term by term will eliminate the term in x

|| (x - x) + ( - 2y - ( - y)) = ( - 6 - 12), that is

- y = - 18 (multiply both sides by - 1)

y = 18

Substitute y = 18 into either of the 2 equations for value of x

Substituting in (2)

x - 18 = 12 (add 18 to both sides)

x = 30

Answer: (30,18)

x - 2y = - 6

x - y = 12

x - y = 12

- y = 12 - x

y = - 12 + x

x - 2y = - 6

x = - 6 + 2*y

y = - 12 + (-6 + 2*y)

y = - 12 - 6 + 2*y

y - 2*y = - 18

-y = - 18

y = 18

y = - 12 + x

18 = - 12 + x

-x = - 12 - 18

x = 12 + 18

x = 30