Question

60 -□=40+10 82+8=59+□ □+14=14+□ 90-25=□-10 □+30=90-5 17+□=□+17

Answer 1

1)10

2)31

3)10

4)10

5)75

6)55

7)10

8)10

Answer 2

1. 10

2. 31

3. 1 и 1

4. 75

5. 55

6. 1 и 1

Answer 3

Let's solve each of these equations:

1. 60 - □ = 40 + 10 To find □, we can combine the numbers on the right side: 60 - □ = 50 Now, isolate □ on one side: □ = 60 - 50 □ = 10

2. 82 + 8 = 59 + □ To find □, we can combine the numbers on the left side: 90 = 59 + □ Now, isolate □ on one side: □ = 90 - 59 □ = 31

3. □ + 14 = 14 + □ In this case, □ can be any value since both sides are equal. The equation is an identity and holds true for any number.

4. 90 - 25 = □ - 10 To find □, we can combine the numbers on the left side: 65 = □ - 10 Now, isolate □ on one side: □ = 65 + 10 □ = 75

5. □ + 30 = 90 - 5 To find □, we can combine the numbers on the right side: □ + 30 = 85 Now, isolate □ on one side: □ = 85 - 30 □ = 55

6. 17 + □ = □ + 17 In this case, □ can be any value since both sides are equal. The equation is an identity and holds true for any number.

So the solutions to the given equations are:

1. □ = 10
2. □ = 31
3. Any value for □
4. □ = 75
5. □ = 55
6. Any value for □