Answer:
x = 2
Step-by-step explanation:
Answer:
x²/9 − (y + 1)²/81 = 1
Step-by-step explanation:
-2y − 82 + 9x² = y²
9x² = y² + 2y + 82
9x² = y² + 2y + 1 + 81
9x² = (y + 1)² + 81
9x² − (y + 1)² = 81
x²/9 − (y + 1)²/81 = 1
It is 7-7-77-8-7-7-7777-75a
The third one ???? why does the answe have to be 20 characters lone ajshsbwh
