równanie -12x+10+6x=-8-3x spełnia liczba a)6/7 b)-6 c)2d)6
-12x +10 + 6x = -8 -3x
10 +8 = -3x + 12x -6x
18= 3x /:3
x = 6
odp a
-12x + 10 + 6x = -8 - 3x
-6x + 10 = -8 - 3x
-6x + 3x = -8 - 10
-3x = -18 /:(-3)
odp. D
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-12x +10 + 6x = -8 -3x
10 +8 = -3x + 12x -6x
18= 3x /:3
x = 6
odp a
-12x + 10 + 6x = -8 - 3x
-6x + 10 = -8 - 3x
-6x + 3x = -8 - 10
-3x = -18 /:(-3)
x = 6
odp. D