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x-x=1/4-1/2+1/3
0=3/12-6/12+4/12
0=1/12
Równanie sprzeczne
4x+7/2 - 5x-1/6 = x+5
4x-5x-x=5-7/2+1/6
-2x=5-21/6+1/6
-2x=5-22/6
-2x=5-3 4/6
-2x=1⅔ /:(-2)
x=-⅚
x+5/4 - 2x+1/8 = ½ (2-x)
-x+11/8=1-½x
-x+½x=1-11/8
-½x=-3/8 /:(-½)
x=6/8
x=¾