Answer:
x = -4
, y = 15
Step-by-step explanation:
Solve the following system:
{3 x + y = 3 | (equation 1)
2 x + y = 7 | (equation 2)
Subtract 2/3 × (equation 1) from equation 2:
{3 x + y = 3 | (equation 1)
0 x+y/3 = 5 | (equation 2)
Multiply equation 2 by 3:
{3 x + y = 3 | (equation 1)
0 x+y = 15 | (equation 2)
Subtract equation 2 from equation 1:
{3 x+0 y = -12 | (equation 1)
0 x+y = 15 | (equation 2)
Divide equation 1 by 3:
{x+0 y = -4 | (equation 1)
0 x+y = 15 | (equation 2)
Collect results:
Answer: {x = -4
, y = 15
