Answer:
x = 7
, y = -3
Step-by-step explanation:
Solve the following system:
{2 x + 9 y = -13 | (equation 1)
-2 x - 8 y = 10 | (equation 2)
Add equation 1 to equation 2:
{2 x + 9 y = -13 | (equation 1)
0 x+y = -3 | (equation 2)
Subtract 9 × (equation 2) from equation 1:
{2 x+0 y = 14 | (equation 1)
0 x+y = -3 | (equation 2)
Divide equation 1 by 2:
{x+0 y = 7 | (equation 1)
0 x+y = -3 | (equation 2)
Collect results:
Answer: {x = 7
, y = -3
