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Anonymous
42, because if there is nothing between the 7 and 'a' and 'a' equals 6 then the answer is 42.
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a+4
A+7
Emily Weaver - Stude... ∙
7a-17 = 4a+1 7a-4a = 1+17 3a = 18 a = 6
3 6
D = 210
7a + 4 = 5a + 7 7a = 5a + 3 2a = 3 a = 3/2
-8