Question

решите пж очень сильно надо даю 50 баллов​

Answer 1

Ответ:

вариант 1

$1. \\ + 23 + ( + 18) = 41 \\ + 15 + ( - 42) = - 27 \\ - 16 + ( - 23) = - 39 \\ - 28 + ( + 34) = 6 \\ 2. \\ - 52 + ( - 14) + 34 = - 66 + 34 = - 32 \\ - 36 + (136 + 59) = - 36 + 195 = 159$

вариант 2

$1. \\ 45 - 12 = 32 \\ 38 - 40 = - 2 \\ 16 - ( - 5) = 16 + 5 = 21 \\ - 17 - 5 = - 22 \\ 2. \\ 156 + a = 16 \\ a = 16 - 156 \\ a = - 140 \\ \\ a - 24 = - 12 \\ a = - 12 + 24 \\ a = 12 \\ \\ a + 52 = - 7 \\ a = - 7 - 52 \\ a = - 59$

вариант 3

$1. \\ - 23 \times 4 = - 92 \\ - 32 \times ( - 3) = 96 \\ 114 \div ( - 3) = - 38 \\ - 188 \div ( - 4) = 46$

$2. \\ x \times ( - 14) = - 42 \\ - 14x = - 42 \\ 14x = 42 \\ x = 3 \\ \\ x \times ( - 6) = 126 \\ - 6x = 126 \\ x = - 21 \\ \\ x \div 8 = - 32 \\ x = - 32 \times 8 \\ x = - 256 \\ \\ ( - 48) \div x = - 4 \\ x = - 4 \times ( - 48) \\ x = 192$

$3. \\ - 14 \times ( - 8 + 3) + 684 \div ( - 9) = 14 \times 5 +( - 76) = 70 - 76 = - 6$