Question

Solve the system my elimination 9x + 2y = 9 6x - 2y = -4

Answer 1

Answer:

x = 1/3   y= 3

Step-by-step explanation:

9x + 2y = 9

6x - 2y = -4

Add the two equations to eliminate y

9x + 2y = 9

6x - 2y = -4

----------------------

15x   = 5

Divide each side by 15

15x/15 = 5/15

x = 1/3

Now we need to find y

6x - 2y = -4

6(1/3) -2y = -4

2 -2y = -4

Subtract 2 from each side

2-2y-2 = -4-2

-2y = -6

Divide each side by -2

-2y/-2 = -6/-2

y = 3