Question

Please help!!!!!
Be sure to answer each question the right way or no points
thanks :)

Answer 1

1) (1, -2) -------->Last option

2) (-3/4 , -1/5) -------> First option

Explanation:

1)

8x + 2y = 4 (1)

-4x + 3y = -10 (2)

Multiply equation(2) by 2

2(-4x + 3y) = 2(-10)

-8x + 6y = -20

So now you have

8x + 2y = 4

-8x + 6y = -20

------------------------add

8y = -16

y = -2

Substitute y = -2 into 8x + 2y = 4

8x + 2(-2) = 4

8x - 4 = 4

8x = 8

x = 1

Solution (1 , -2)

2)

8g - 5h = 7 (1)

4g + 10h = 1 (2)

Multiply equation(2) by -2

-2(4g + 10h) = -2(1)

-8g - 20h = -2

Now you have 2 equations

8g - 5h = 7

-8g - 20h = -2

----------------add

-25h = 5

h = -1/5

Substitute h = -1/5 into 8g - 5h = 7

8g - 5(-1/5) = 7

8g + 1 = 7

8g = -6

g = -3/4

Solution (-3/4 , -1/5)