November 2018 1 24 Report

1. - 6 x - 5 + 2x - 4 + x = ... x = 4
2. 6,1 - 7y - 4 + 6y = ... y = -3,7
3. -9x - 2y _ 7x - 4 - y = ... x = 0,6 y = 1,2
4. 1/2 a + 4b + 2 1/2 a + 3,5b - 2 = ... a = 1/3 b = 7
5. - 6 x - y - 3x + 5y = ... x = 2 y = -3
6. - 7y - 4 - 2,1y = ... y = 10
7. -8,2x - 3 - 2,8x +7= ... x = 2

bardzo proszę o pomoc :D


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