Odpowiedź:
B
w II
-2x+1/2=3,5 /-1/2
-2x=3 /÷-2
x= -3/2
w III
1/3-3x=3 1/3 /-1/3
-3x=3 /÷-3
x= -1
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Odpowiedź:
B
w II
-2x+1/2=3,5 /-1/2
-2x=3 /÷-2
x= -3/2
w III
1/3-3x=3 1/3 /-1/3
-3x=3 /÷-3
x= -1