Rozwiaz rownanie :
a) 6(1/4x-2)=18
b) -2(2x-1)=x/3
z gory dzieki :))
a)
6(1/4x-2)=18 |:6
1/4x-2=3 |+2
1/4x=5 |*4
x=20
b)
-2(2x-1)=x/3
-4x+2=x/3 |*3
-12x+6=x |+12x
13x=6
x=6/13
x=0,46 (w przybliżeniu)
a).3/2x-12=18
3/2x=18+12
3/2x=30/: 3/2
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a)
6(1/4x-2)=18 |:6
1/4x-2=3 |+2
1/4x=5 |*4
x=20
b)
-2(2x-1)=x/3
-4x+2=x/3 |*3
-12x+6=x |+12x
13x=6
x=6/13
x=0,46 (w przybliżeniu)
a).3/2x-12=18
3/2x=18+12
3/2x=30/: 3/2
x=20