T=m1t1+m2t2/m1+m2
T-m2t2/m1-m2 =m1t1
T-m2t2/(m1-m2)m1=t1
T=m1t1+m2t2/m1+m2T*m1+m2=m1t1+m2t2 /-m2t2T(m1+m2)-m2t2=m1t1 / :m1wynik:[T(m1+m2)-m2t2]:m1=t1
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T=m1t1+m2t2/m1+m2
T-m2t2/m1-m2 =m1t1
T-m2t2/(m1-m2)m1=t1
T=m1t1+m2t2/m1+m2
T*m1+m2=m1t1+m2t2 /-m2t2
T(m1+m2)-m2t2=m1t1 / :m1
wynik:
[T(m1+m2)-m2t2]:m1=t1