rozwiąż rówanie
x/3-x/2=2
wyznacz c
b)2/c=a/4+b/4
c)1/a-3/2c=2/c
a)
x/3-x/2=2 /*6
2x-3x=2
-x=2 /*-1
x=-2
b)
2/c=a/4+b/4 /*1/2
c=a/2+b/2
c)
1/a-3/2c=2/c
-3/2c-2/c=-1/a /*2
-3c-4/c=-2/a /*1/4
-3c/4-c=-2a /*4
-3c-4c=-8a
-c=-8a
c=8a
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a)
x/3-x/2=2 /*6
2x-3x=2
-x=2 /*-1
x=-2
b)
2/c=a/4+b/4 /*1/2
c=a/2+b/2
c)
1/a-3/2c=2/c
-3/2c-2/c=-1/a /*2
-3c-4/c=-2/a /*1/4
-3c/4-c=-2a /*4
-3c-4c=-8a
-c=-8a
c=8a