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x = -14
b) 5y=13 /:5
y = 13/5
c)-3/4z=3/4 /*-4/3
z = -1
d)-1/6u=1/3 /*-6
u = -2
e) y razy 12=-60 /:12
y = -5
f) -2w=-1/2 /:-2
w = 1/4
g)5a=0 /:5
a = 0
h) -7b= 7/8 /:-7
b = -1/8
i)22(-c)=-66 /:-22
c = 3
Jeśli cos potrzeba wyjaśnić, zapraszam na priv :)
b) 5y=13 //:5 y=2,6
c) 2=-1
d) u=-2
e) y*12=-60 12y=-60 //:12 y=5
f) -2w=-1/2 //:(-2) w=1
g) 5a=0 rownanie sprzeczne czyli brak rozwiazan.
h) c=3
x = -14
b) 5y=13 /:5
y = 2 i 3/5
c)-3/4z=3/4 /*-4/3
z = -1
d)-1/6u=1/3 /*-6
u = -2
e) y razy 12=-60 /:12
y = -5
f) -2w=-1/2 /:-2
w = 1/4 lub 0,25
g)5a=0 /:5
a = 0
h) -7b= 7/8 /:-7
b = -1/8
i)22(-c)=-66 /:-22
c = 3