Давайте решим уравнения:
\( x + 17 = 60 \)
\( x = 60 - 17 = 43 \)\( a - 51 = 60 \)
\( a = 60 + 51 = 111 \)\( 60 = a + 51 \)
\( a = 60 - 51 = 9 \)\( c - 43 = 81 \)
\( c = 81 + 43 = 124 \)\( 62 = 100 - y \)
\( y = 100 - 62 = 38 \)\( 59 + x = 59 \)
\( x = 59 - 59 = 0 \)\( 78 - a = 78 \)
\( a = 0 \)\( a + 45 = 45 \)
\( a = 45 - 45 = 0 \)\( x - 0 = 82 \)
\( x = 82 \)\( 70 - c = 68 \)
\( c = 70 - 68 = 2 \)