1) x + 12 = 14 a) x = 4 b) x = 18 c) x = 5 d) x = 2 2) 11 + x = 15 a) x = 18 b) x = 3 c) x = 4 d) x = 6 3) x ‒ 5 = 6 a) x = 3 b) x = 11 c) x = 5 d) x = 6 4) x ‒ 3 = 2 a) x = 5 b) x = 11 c) x = 10 d) x = 6 5) 2 + x = 8 a) x = 6 b) x = 7 c) x = 11 d) x = 12 6) x ‒ 6 = 12 a) x = 3 b) x = 2 c) x = 18 d) x = 4 7) 7 + x = 14 a) x = 7 b) x = 18 c) x = 11 d) x = 4 8) 12 ‒ x = 9 a) x = 4 b) x = 3 c) x = 11 d) x = 2 9) 5 + x =19  a) x = 12 b) x = 10 c) x = 4 d) x = 11 10) x ‒ 10 = 2 a) x = 18 b) x = 12 c) x = 10 d) x = 6

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