Rozwiąż równania.
a) 1/2x - 3/4[x-(4x + 1)] = 1 - x+1/4
b) 2/3(3x - 1) - 3/2[2x + 3(x - 2)] = 1
W "a" wynik ma się równać x = 0, a w "b" x = 1 i 1/3
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a)
1/2x - 3/4[x-(4x + 1)] = 1 - x+1/4 |*4
2x-3(x-4x-1)=4-(x+1)
2x-3(-3x-1)=4-x-1
2x+9x+3=3-x
11x+3=3-x |+x
12x+3=3 |-3
12x=0
x=0
b)
2/3(3x - 1) - 3/2[2x + 3(x - 2)] = 1 |*6
4(3x-1)-9(2x+3x-6)=6
12x-4-45x+54=6
-33x+50=6
33x=44 |:10
3x=4 |:3
x=4/3
x=1 i 1/3