policz x+2=2x-3 2x-1=x=3 x=6-5x
1) x+2=2x-3
x-2x=-3-2
-x=-5 /*(-1)
x=5
2) 2x-1=x+3
2x-x=3+1
x=4
3) x=6-5x
x+5x=6
6x=6 /:6
x=1
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1) x+2=2x-3
x-2x=-3-2
-x=-5 /*(-1)
x=5
2) 2x-1=x+3
2x-x=3+1
x=4
3) x=6-5x
x+5x=6
6x=6 /:6
x=1