równania oblicz:
a)3*(x+2)=2x-1
b)x/2+1/3=x/3-1/6
c)2x-1=3x-2
d)4(2x-2)=x-5
e)2(x-1)-3(2-x)+3x=5(x-2)+3
f)x-1/2+3x+2/3=1/4-x/2
g)2(x-1)+3=x-1
h)x-2(x-1)=3-x
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a)3*(x+2)=2x-1
3x+6=2x-1
x=-7
b)x/2+1/3=x/3-1/6 /obustronnie *6
3x+2=2x-1
x=-3
c)2x-1=3x-2
-x=-1
x=1
d)4(2x-2)=x-5
8x-8=x-5
7x=3
x=3/7
e)2(x-1)-3(2-x)+3x=5(x-2)+3
2x-2-6+3+3x=5x-10+3
x=-2
f)x-1/2+3x+2/3=1/4-x/2
nie wiem który ułamek jest do czego?
g)2(x-1)+3=x-1
2x-2+3=x-1
x=-2
h)x-2(x-1)=3-x
x-2x+2=3-x
2x=1
x=1/2