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2x + 6/10 +10/10 -3/10 = 0
2x = - 13/10 /:2
x = -13/20
x-2/4-x+3/6 = 5/12
-2/4+3/6 = 5/12
-6/12+6/12= 5/12
0=5/12 sprzeczność
1/2y+6 = y-4
1/2y-y = -4-6
-1/2y = -10 /*(-2)
y = 20
2x- 8/4 -1/5 = 7x +1/20
2x-7x = 1/20 +40/20+4/20
-5x=45/20 /: (-5)
x= -9/20