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Solve the system of linear equations below.

x − 3y = -3
x + 3y = 9

A. x = -12, y = 7

B. x = 3, y = 2

C. x = 6, y = 1

D. x = 6, y = 2

Solve the system of linear equations below x 3y 3 x 3y 9 A x 12 y 7 B x 3 y 2 C x 6 y 1 D x 6 y 2 class=

Respuesta :

Smartie143
The answer is B because you have to input the answers they give you infer to find the real or correct answer you are looking for

Answer: the correct answer is B: x=3, y=2

Step-by-step explanation:

x-3y=-3...........................(1)

x+3y=9............................(2)

using elimination method.

We eliminate x by introducing subtraction

x-3y=-3

-

x+3y=9

the single equation becomes

0-6y=-12

-6y=-12

Minus cancelled each other

6y=12

y=12/6

y=2

to find x substitute y=2 in equation 1

x-3y=-3

x-3(2)=-3

x-6=-3

x=-3+6

x=3

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