Solve the system of linear equations by elimination.

-

- 3x + 4y = 18

6x+2y = - 6

Answer: (-2,3)

Step-by-step explanation:

-3x + 4y = 18

6x + 2y = - 6 we have to eliminate one of the variables so you will have ot

2 (-3x + 4y) = 18 (2) multiply the first equation by 2.

-6x + 8y = 36

6x + 2y = - 6 now we could eliminate the x terms by adding them and

0 + 10y = 30 remember that is a new equation.

y = 3

Now we know that the y solution is 3 so we will put it into one of the equations and solve for x.

-6x + 8 (3) = 36

-6x + 24 = 36

-24 - 24

-6x = 12

x = - 2

x=-2

y=3

Step-by-step explanation:

-3x+4y=18

multiply by 2

-6x+8y=36

and 6x+2y=-6

add

10 y=30

y=30/10=3

6x+2 (3) = -6

6x=-6-6

6x=-12

x=-2