31x + 29y =
2 / ·13
-13x – 17y = 4 / ·31
403x + 377y =
26
-403x – 527y
= 124
-150y = 150 /
: (-150)
y = -1
31x + 29 · (-1) = 2
31x – 29 =
2 / + 29
31x = 31 / : 31
x = 1
ZK: L1: 31 · 1 + 29 · (-1) = 31 – 29 = 2 P1: 2 L1 = P1 L2: -13 ·
1 – 17 · (-1) = -13 + 17 = 4 P2: 4 L2 = P2 |