Pomocy Zadanie 57 któje jest zamieszczone w załączniku
zad 57
a) k=7n; n 7n = k /: 7 n = k/7 b) a=k+6; k k + 6 = a k = a - 6 c) z=7-y; y 7 - y = z -y = z - 7 /: (-1) y = 7 - z d) d=a+bc; c a + bc = d bc = d - a /: b c = (d-a) : b e) x=2k+1: k 2k + 1 = x 2k = x - 1 /: 2 k = (x - 1) : 2 f) 2k=7n+5: n 7n + 5 = 2k 7n = 2k - 5 /: 7 n = (2k - 5) : 7
mam nadzieje ze dobrze licze na naj !
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zad 57
a) k=7n; n
7n = k /: 7
n = k/7
b) a=k+6; k
k + 6 = a
k = a - 6
c) z=7-y; y
7 - y = z
-y = z - 7 /: (-1)
y = 7 - z
d) d=a+bc; c
a + bc = d
bc = d - a /: b
c = (d-a) : b
e) x=2k+1: k
2k + 1 = x
2k = x - 1 /: 2
k = (x - 1) : 2
f) 2k=7n+5: n
7n + 5 = 2k
7n = 2k - 5 /: 7
n = (2k - 5) : 7
mam nadzieje ze dobrze licze na naj !