6. Реши уравнения:

Решение:

• \( X - 34 = 46 \)
\( X = 46 + 34 \) \( X = 80 \)
• \( 52 - X = 40 \)
\( X = 52 - 40 \) \( X = 12 \)
• \( c + 6 = 15 \)
\( c = 15 - 6 \) \( c = 9 \)
• \( 63 + c = 90 \)
\( c = 90 - 63 \) \( c = 27 \)
• \( Y : 15 = 3 \)
\( Y = 15 \times 3 \) \( Y = 45 \)
• \( X \times 11 = 77 \)
\( X = 77 : 11 \) \( X = 7 \)

Ответ: X = 80, X = 12, c = 9, c = 27, Y = 45, X = 7.