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
3x-2x=(-6)+(-1)
x=(-7)
c)2x-1=3x-2
2x-3x=1+(-2)
(-x)=(-1)
d)4(2x-2)=x-5
8x-8=x-5
8x-x=8+(-5)
7x=3/:7
x=2,(3)
e)2(x-1)-3(2-x)+3x=5(x-2)+3
2x-2-6-3x+3x=5x-10+3
2x-3x+3x-5x=2+6-10+3
(-3x)=1/:3
x=0,(3)
g)2(x-1)+3=x-1
2x-2+3=x-1
2x+(-x)=2+3-1
x=4
h)x-2(x-1)=3-x
x+(-2)(x-1)=3-x
x+(-2x)+(-2)=3-x
x+(-2x)+x=2+3
5