4x + 5y = -28
-4x – 7y = 28

x = -7 , y = 0

Step-by-step explanation:

Solve the following system:

{4 x + 5 y = -28 | (equation 1)

-4 x - 7 y = 28 | (equation 2)

Add equation 1 to equation 2:

{4 x + 5 y = -28 | (equation 1)

0 x - 2 y = 0 | (equation 2)

Divide equation 2 by 2:

{4 x + 5 y = -28 | (equation 1)

0 x - y = 0 | (equation 2)

Multiply equation 2 by -1:

{4 x + 5 y = -28 | (equation 1)

0 x+y = 0 | (equation 2)

Subtract 5 × (equation 2) from equation 1:

{4 x+0 y = -28 | (equation 1)

0 x+y = 0 | (equation 2)

Divide equation 1 by 4:

{x+0 y = -7 | (equation 1)

0 x+y = 0 | (equation 2)

Collect results:

{x = -7 , y = 0

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

0.5?

hope your goes well, here's a turkey

-thekoolkid1o1