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22 votes
2) (89° + 10a + 2) = (a + 1)

User Lkraav
by
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1 Answer

10 votes

Answer:

a = -10

Explanation:

89 + 10a + 2 = a + 1

91 + 10a = a + 1

9a = - 90

a = -10

User Svennergr
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