Rozwiąż równania: 97=2x-5 43=7+9x 17=11-12x 3 dwie trzecie =jedna druga x - jedna trzecia
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a)
97=2x-5
-2x = - 102 /:(-2)
x = - 51
b)
43=7+9x
-9x = -36 /:(-9)
x = 4
c)
17=11-12x
-12x = -6 /:(-12)
x = 0,5
d)
2/3 = 1/2x - 1/3 /*6
4 = 3x - 2
-3x = -6 /:(-3)
x = 2
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a)
97=2x-5
-2x = - 102 /:(-2)
x = - 51
b)
43=7+9x
-9x = -36 /:(-9)
x = 4
c)
17=11-12x
-12x = -6 /:(-12)
x = 0,5
d)
2/3 = 1/2x - 1/3 /*6
4 = 3x - 2
-3x = -6 /:(-3)
x = 2