Solve the system of linear equations below.

x-3y=-3

x + 3y = 9

OA. x = - 12, y = 7

B. * = 3, y = 2

C. X = 6, y = 1

D. X = 6, y = 2

x = 3, y = 2

Step-by-step explanation:

Given the 2 equations

x - 3y = - 3 → (1)

x + 3y = 9 → (2)

Adding the 2 equations term by term eliminates the term in y, that is

(x + x) + (3y - 3y) = ( - 3 + 9), that is

2x = 6 (divide both sides by 2)

x = 3

Substitute x = 3 into either of the 2 equations and solve for y

Substituting x = 3 into (2)

3 + 3y = 9 (subtract 3 from both sides)

3y = 6 (divide both sides by 3)

y = 2