14 + a = 39. What does a =?, 80 - a = 39. What does a =?, a + 29 = 100 What does a =?, 77 + a = 156 What does a =?, 2a = 10, What does a =?, 10a = 80, What does a =?, 14a = 28, What does a =?, 7a = 56, What does a=?, 25a = 175, What does a =?, If a =2, solve 3a, If a =5, solve 11a, If a =6, solve 9a, If a =4, solve 13a, If a =9, solve 7a, If a =11, solve 11a.

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