zapisz za pomocą najprostszego wyrażenia algebraicznego a)x-4+9-6x=6x-6 b)10n-3-2n=3n-13+2n c)4x-3+2x=8x-3 d)6r-4-3r=3r+10+4r
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a)x-4+9-6x=6x-6
6-4+9=6x-x+6x
11=11x
b)10n-3-2n=3n-13+2n
13-3=3n+2n-10n+2n
10= -3n
c)4x-3+2x=8x-3
3-3=8x-4x-2x
0=2x
d)6r-4-3r=3r+10+4r
-4-10=3r+4r-6r+3r
-14=4r