Rozwiaz rownanie :
a) 5(x-1)+2x=2(x+2)+6
b)x+4-5(x-8)=x-6
c)6x-(x-1)=6
d) 2(x-1)+3(x-2)=7
...) 4x-17=0
...) 12x+7=9x+10
...) 8-2x=5x-5
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a) 5(x-1)+2x=2(x+2)+6
5x-5+2x=2x+4+6
7x-5=2x+10 /-2x
5x-5=10 /+5
5x=15 /:5
x=3
b)x+4-5(x-8)=x-6
x+4-5x+40=x-6
-4x+44=x-6 /+6
-4x+50=x /+4x
50=5x /:5
10=x
c)6x-(x-1)=6
6x-x+1=6
5x+1=6 /-1
5x=5
x=1
d) 2(x-1)+3(x-2)=7
2x-2+3x-6=7
5x-8=7 /+8
5x=15 /:5
x=3
4x-17=0 /+17
4x=17 /:4
x=\frac{17}{4} czlyi
x=4\frac{1}{4}
12x+7=9x+10 /-7
12x=9x+3 /-9x
3x=3 /:3
x=3
8-2x=5x-5 /+5
13-2x=5x /+2x
13=7x /:7
\frac{13}{7}=x czyli
1\frac{6}{3}=x
a)5x-5+2x=2x+4+6
7x-5=2x+10 /-2x
5x-5=10 /-5
5x=5 /:5
x=1
b)x+4-5x+8=x-6
-4x+12=x-6 /-x
-5x+12=-6 / -12
-5x=-18 /: -5
x=3,6
c)6x-x+1=6
5x+1=6 / -1
5x=5 / :5
x=1
d)2x-2+3x-6=7
5x-8=7 /+8
5x=15 /:5
x=3
4x-17=0 /+17
4x=17 /4
x=4,25 czyli 4 i jedna trzecia
12x+7=9x+10 /-9x
3x+7=10 /-7
3x=3 /:3
x=1
8-2x=5x-5 /-5x
8-7x=-5 /-8
-7x= -13 /: -7
x=1,85