Odpowiedź:
Szczegółowe wyjaśnienie:
a) 3(2x+1) = (x-4)4
6x+3 = 4x-16
6x-4x = -16-3
2x = -19 /:2
x = -9,5
b) 2(2x-2) = 3(3x+2)
4x-4 = 9x+6
-4-6 = 9x-4x
-10 = 5x /:5
x = -2
c) (6x-1)1,2 = (x+1)2,3
7,2x-1,2 = 2,3x+2,3
7,2x-2,3x = 2,3+1.2
4,9x = 3,5 /:4,9
x = 35/49
x = 5/7
d) -x(1-6x) = (3x-1)2x
-x+6x² = 6x²-2x
6x²-6x² = -2x+x
0 = -x
x = 0
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Odpowiedź:
Szczegółowe wyjaśnienie:
a) 3(2x+1) = (x-4)4
6x+3 = 4x-16
6x-4x = -16-3
2x = -19 /:2
x = -9,5
b) 2(2x-2) = 3(3x+2)
4x-4 = 9x+6
-4-6 = 9x-4x
-10 = 5x /:5
x = -2
c) (6x-1)1,2 = (x+1)2,3
7,2x-1,2 = 2,3x+2,3
7,2x-2,3x = 2,3+1.2
4,9x = 3,5 /:4,9
x = 35/49
x = 5/7
d) -x(1-6x) = (3x-1)2x
-x+6x² = 6x²-2x
6x²-6x² = -2x+x
0 = -x
x = 0