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3x + x = -9 +2
4x=7 ||4
x=7/4
x=1 i 3/4
b) 5x = 10x -2x -10
5x -10x +2x = -10
-3x = -10 ||-3
x=10/3
x=3 i 1/3
c) 8x -20 = 6x+14
8x -6x = 14+20
2x = 34|| 2
x=17
f) x do kwadratu -3x = x do kwadratu +4
x do kwadratu - x do kwadratu - 3x= 4
-3x = 4 ||-3
x =-4/3
x= -1 i 1/2
w przykladzie d i e wychodzi mi sprzecznosc wiec nie pisze bo jest zle :(