1) x + 9 = 12 a) x = 3 b) x = 10 c) x = 100 d) x = 33 e) x = 333 2) s - 1 = 10 a) s = 11 b) s = 111 c) s = 1010 d) s = 9 e) s = 90 3) 5 + y = 7 a) y = 2 b) y = 3 c) y = 4 d) y = 5 e) y = 6 4) 6 = m + 6 a) m = 0 b) m = 10 c) m = 100 d) m = -10 e) m = -100 5) 11 = z - 5 a) z = 16 b) z = 654 c) z = 76545435 d) z = 84645 e) z = -16 6) 15 = 12 + s a) s = 3 b) s = -3 c) s = -333 d) s = 89 e) s = 0 7) 5 = y - 4 a) y = 9 b) y = 10 c) y = 11 d) y = 99 e) y = 19 8) u + 14 = 15 a) u = 1 b) u = 32 c) u = 91 d) u = 0 e) u = 87 9) p - 4 = 0 a) p = 4 b) p = 41 c) p = - 4 d) p = 0 e) p = 9 10) v + 5 = 12 a) v = 7 b) v = 700 c) v = 09 d) p = -77 e) p = -7 11) 3x = 36 a) x =12 b) x = 21 c) x = -21 d) x = -12 e) x = 22 12) 24 = 6c a) c = 44 b) c = 41 c) c = 0 d) c = 4 e) c = 444444 13) 8v = 40 a) v = -5 b) v = 15 c) v = 5 d) v = 7 e) v = 6 14) 7z = 7 a) z = 10 b) z = 100 c) z = 234 d) z = 1 e) z = -1 15) 5u = 45 a) u = 99 b) u = 2 c) u = 3 d) u = 19 e) u = 9 16) 9c + 1 = 10 a) c = 1 b) c = 9 c) c = 6 d) c = 91 e) c = 100 17) 6y - 5 = 7 a) y = 1 b) y = -22 c) y = -30 d) y = 2 e) y = 222 18) 1 + 2r = 35 a) r = 80 b) r = 8 c) r = -17 d) r = 17 e) r = 90 19) 4p - 3 = 17 a) p = -5 b) p = 5 c) p = -66 d) p = 66 e) p = 1 20) 2k - 47 = 3 a) k = 26 b) k = 28 c) k = 30 d) k = 27 e) k = 25

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