help115
help115
23-09-2015
Mathematics
contestada
8(t + 2)—3(t—4)=6(t—7)+8
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Аноним
Аноним
23-09-2015
8t + 2 -3t +12 = 6t - 42 +8
5t +2 +12 = 6t - 34
5t +14 = 6t - 34
-14 = - 14
5t = 6t - 20
-6t = -6t
-t = -20
t = 20
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