x°+90°=180° what is x

Answer 1

To solve the equation \( x° + 90° = 180° \), you need to isolate \( x \).

1. Subtract \( 90° \) from both sides: \[ x° = 180° - 90° \]
2. Simplify the right side: \[ x° = 90° \]

Therefore, \( x = 90 \).