Solve the following equations: x - 150 = 75 400 - x = 180 x + 67 = 200 x - 90 = 10 300 - x = 125 x + 89 = 150

Решение:

1. \( x - 150 = 75 \)
   \( x = 75 + 150 \)
   \( x = 225 \)
2. \( 400 - x = 180 \)
   \( x = 400 - 180 \)
   \( x = 220 \)
3. \( x + 67 = 200 \)
   \( x = 200 - 67 \)
   \( x = 133 \)
4. \( x - 90 = 10 \)
   \( x = 10 + 90 \)
   \( x = 100 \)
5. \( 300 - x = 125 \)
   \( x = 300 - 125 \)
   \( x = 175 \)
6. \( x + 89 = 150 \)
   \( x = 150 - 89 \)
   \( x = 61 \)

Ответ: x = 225, x = 220, x = 133, x = 100, x = 175, x = 61.