Question

solve the simultaneous below x-y≈4andx²+y²≈26

Answer 1

Step-by-step explanation:

x - y = 4

=} X = 4 + y

x² + y² = 26

=} (4 + y)² + y² = 26

=} (4)² + (y)² + 2.4.y + y² = 26

=} 16 + y² + 8y = 26

=} y² + 8y = 26 - 16

=} y² = 10 - 8y

=} y = √10 - 8y