rozwiąż równanie:
x +(-1) x +2=x+3 x+4
2x+2=2x+7 /-2
2x=2x+5 /-2x
0x=5
x+(-1)x+2=x+3x+4
2=x+3x+4
2=2x+7 /-2x
2-2x=7 /-2
-2x=5 / :(-2)
x+-2,5
x-1x+2=x+3x+4
2-4=x+3x-x+1x
-2=4x/4
x=-1/2
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2x+2=2x+7 /-2
2x=2x+5 /-2x
0x=5
x+(-1)x+2=x+3x+4
2=x+3x+4
2=2x+7 /-2x
2-2x=7 /-2
-2x=5 / :(-2)
x+-2,5
x+(-1)x+2=x+3x+4
x-1x+2=x+3x+4
2-4=x+3x-x+1x
-2=4x/4
x=-1/2