Answer:
x = -4 , y = 3
Explanation:
Solve the following system:
{x - 2 y = -10 | (equation 1)
x - 3 y = -13 | (equation 2)
Subtract equation 1 from equation 2:
{x - 2 y = -10 | (equation 1)
0 x - y = -3 | (equation 2)
Multiply equation 2 by -1:
{x - 2 y = -10 | (equation 1)
0 x+y = 3 | (equation 2)
Add 2 × (equation 2) to equation 1:
{x+0 y = -4 | (equation 1)
0 x+y = 3 | (equation 2)
Collect results:
Answer: {x = -4 , y = 3