194. Решите уравнения: а) 5x + 12 = 6 : 10 + 3 : 4; б) 56 + 8x = 7 : 8 + 2 : 32.

Решение:

1. а) 5x + 12 = 6 : 10 + 3 : 4
   \( 5x + 12 = 0.6 + 0.75 \)
   \( 5x + 12 = 1.35 \)
   \( 5x = 1.35 - 12 \)
   \( 5x = -10.65 \)
   \( x = -10.65 : 5 \)
   \( x = -2.13 \)
2. б) 56 + 8x = 7 : 8 + 2 : 32
   \( 56 + 8x = 0.875 + 0.0625 \)
   \( 56 + 8x = 0.9375 \)
   \( 8x = 0.9375 - 56 \)
   \( 8x = -55.0625 \)
   \( x = -55.0625 : 8 \)
   \( x = -6.8828125 \)