5y + 3x = 3 -8y + 9x = -12 solve for x and y

x = -4 , y = -3

Step-by-step explanation:

Solve the following system:

{3 x - 5 y = 3 | (equation 1)

9 x - 8 y = -12 | (equation 2)

Swap equation 1 with equation 2:

{9 x - 8 y = -12 | (equation 1)

3 x - 5 y = 3 | (equation 2)

Subtract 1/3 × (equation 1) from equation 2:

{9 x - 8 y = -12 | (equation 1)

0 x - (7 y)/3 = 7 | (equation 2)

Multiply equation 2 by 3/7:

{9 x - 8 y = -12 | (equation 1)

0 x - y = 3 | (equation 2)

Multiply equation 2 by -1:

{9 x - 8 y = -12 | (equation 1)

0 x+y = -3 | (equation 2)

Add 8 × (equation 2) to equation 1:

{9 x+0 y = -36 | (equation 1)

0 x+y = -3 | (equation 2)

Divide equation 1 by 9:

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

0 x+y = -3 | (equation 2)

Collect results:

 {x = -4 , y = -3

50- 250 is correct i did that one too

step-by-step explanation:

step-by-step :