Odpowiedź:
a) 2x-3+4x-5=2x+4x-3-5=6x-8
b) 4m+2-m-7=4m-m+2-7=3m-5
c) 8-3z+2+5z=-3z+5z+8+2=2z+10
d) -1+t-3t+6=t-3t-1+6=-2t+5
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Odpowiedź:
a) 2x-3+4x-5=2x+4x-3-5=6x-8
b) 4m+2-m-7=4m-m+2-7=3m-5
c) 8-3z+2+5z=-3z+5z+8+2=2z+10
d) -1+t-3t+6=t-3t-1+6=-2t+5