Question

X+3-25=87;555: 5-x-74;3- (35-x)=63; 0.8-17-х-107; II. 2x+87=93;(120-x): 13-8.​

Answer 1

Ответ:

х+3*25=87

х+75=87

х=87-75

х=12

8*17-х=107

136-х=107

х=136-107

х=29

555:5-х=74

111-х=74

х=111-74

х=37

2х+87=93

2х=93-87

2х=6

х=6:2

х=3

3(35-х)=63

105-3х=63

3х=105-63

3х=42

х=42:3

х=14

(120-х):13=8

120-х=8*13

120-х=104

х=120-104

х=16

Answer 2

Let's solve each of the equations step by step:

1. x + 3 - 25 = 87 First, simplify the equation by combining like terms: x - 22 = 87

   Now, add 22 to both sides of the equation to isolate x: x = 87 + 22 x = 109

2. 555 / 5 - x - 74 First, simplify the division: 111 - x - 74

   Now, combine like terms: 111 - 74 - x

   Finally, subtract 74 from 111: 37 - x

3. 3 - (35 - x) = 63 Start by simplifying the expression inside the parentheses: 3 - (35 - x) = 3 - 35 + x

   Combine like terms: -32 + x = 63

   Now, isolate x by adding 32 to both sides: x = 63 + 32 x = 95

4. 0.8 - 17 - x - 107 Start by combining the constants: -116 - x

5. 2x + 87 = 93 First, subtract 87 from both sides: 2x = 93 - 87 2x = 6

   Now, divide by 2 to isolate x: x = 6 / 2 x = 3

6. (120 - x) / 13 - 8 First, subtract 8 from the expression inside the parentheses: (120 - x) / 13 - 8

   Now, divide the result by 13: (120 - x) / 13 - 8

These are the solutions for the equations you provided.