Odpowiedź:
a)
11x-6=7x-4
11x - 7x = -4 + 6
4x = 2
x = 2/4 = 1/2
b)
4x+3=9x-12.
4x - 9x = -12 - 3
-5x = -15 /:(-5)
x = 3
c)
x:7=18. /*7
x = 18/7 = 2 4/7
d)
5x-1+6x=3
11x = 3 + 1 /:11
x = 4/11
Szczegółowe wyjaśnienie:
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Odpowiedź:
a)
11x-6=7x-4
11x - 7x = -4 + 6
4x = 2
x = 2/4 = 1/2
b)
4x+3=9x-12.
4x - 9x = -12 - 3
-5x = -15 /:(-5)
x = 3
c)
x:7=18. /*7
x = 18/7 = 2 4/7
d)
5x-1+6x=3
11x = 3 + 1 /:11
x = 4/11
Szczegółowe wyjaśnienie: