What is the 4x - 3y = 6 x + 2y = -15

x = -3 , y = -6

Step-by-step explanation:

Solve the following system:

{4 x - 3 y = 6 | (equation 1)

{x + 2 y = -15 | (equation 2)

Subtract 1/4 × (equation 1) from equation 2:

{4 x - 3 y = 6 | (equation 1)

{0 x+(11 y)/4 = (-33)/2 | (equation 2)

Multiply equation 2 by 4/11:

{4 x - 3 y = 6 | (equation 1)

{0 x+y = -6 | (equation 2)

Add 3 × (equation 2) to equation 1:

{4 x+0 y = -12 | (equation 1)

{0 x+y = -6 | (equation 2)

Divide equation 1 by 4:

{x+0 y = -3 | (equation 1)

{0 x+y = -6 | (equation 2)

Collect results:

 {x = -3 , y = -6

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80