Answer:
no (1/2, -1/2) is not a solution
Explanation:
plug in (1/2, -1/2) into the first equation:
4(1/2) + (-1/2) ≠ -1
2 + (-1/2) = 3/2
3/2 ≠ -1
( 4,2 )
3.3m questions
4.3m answers