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Bas_tet [7]
3 years ago
13

20 POINTS, 2 questions ( answer with both explanations !! )

Mathematics
1 answer:
andrew11 [14]3 years ago
6 0
A) 275+12d=1091
b) 275+12d=1091
-275 on both sides
12d=816
÷12 on both sides
d=68
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