Question

(×+24)+53=930 35+(×-17)=85 64-(15-×)=28

Answer 1

Ответ:

Пошаговое объяснение:

1) (х + 24) + 54 = 930

   х +24 +54 = 930

   х = 930 - 54 - 24

   х = 852

2) 35 + (х - 17) = 85

   35 + х - 17 = 85

   х = 85 - 35 + 17

   х = 67

3) 64 - (15 - х) = 28

   64 - 15 + х = 28

   х = 28 - 64 + 15

   х = - 21  

Answer 2

1. (Х + 24) + 53 = 930

Х + 24 = 930 - 53

Х + 24 = 877

Х = 877 - 24

Х = 853

Проверка: (853 + 24) + 53 = 930

2. 35 + (х - 17) = 85

Х - 17 = 85 - 35

Х - 17 = 50

Х = 50 + 17

Х = 67

Проверка: 35 + (67 - 17) = 85

3. 64 - (15 - х) = 28

64 - 28 = 15 - х

36 = 15 -х

х = 15 - 36

х = -21

Проверка: 64 - (15 - (-21)) = 28

Answer 3

Let's solve each equation step by step:

1. $(× + 24) + 53 = 930$

First, simplify the left-hand side:

$× + 24 + 53 = × + 77$

Now, we have the equation:

$× + 77 = 930$

Subtract 77 from both sides to isolate $×$:

$× = 853$

2. $35 + (× - 17) = 85$

Simplify the expression inside the parentheses:

$35 + × - 17 = × + 18$

Now, we have the equation:

$× + 18 = 85$

Subtract 18 from both sides to isolate $×$:

$× = 67$

3. $64 - (15 - ×) = 28$

Simplify the expression inside the parentheses:

$64 - 15 + × = 49 + ×$

Now, we have the equation:

$49 + × = 28$

Subtract 49 from both sides to isolate $×$:

$× = -21$

The solutions are:

1. $× = 853$
2. $× = 67$
3. $× = -21$