Question

20-?>9+9, 9-?=6+?, 15>?+?, 6+6>?-2,

Answer 1

1 ето 1. 2 ето 0 и 3 3 ето 5 и 5 4 ето 4

Answer 2

Первое. 20-1 Второе .9-3 и 6+3 Третье. 5+5 Четвёртое .10-2

Answer 3

Let's solve the given equations step by step:

1. 20 - ? > 9 + 9:

To simplify this equation, we can combine like terms: 20 - ? > 18

To isolate the variable "?", we subtract 20 from both sides: -? > 18 - 20 -? > -2

Since we have a negative sign in front of the variable, we can multiply both sides of the equation by -1 to change the direction of the inequality: ? < 2

Therefore, the solution to this equation is ? < 2.

2. 9 - ? = 6 + ?:

To solve this equation, we can isolate the variable "?". Let's start by moving the terms with "?" to one side and the constants to the other side: 9 - 6 = ? + ?

Simplifying both sides of the equation: 3 = 2?

To solve for "?", we divide both sides by 2: ? = 3/2 ? = 1.5

Therefore, the solution to this equation is ? = 1.5.

3. 15 > ? + ?:

To determine the possible values for "?", we need to consider that the sum of "? + ?" must be less than 15. As there are infinite possibilities, we cannot find a specific value for "?". However, we can provide some examples of valid solutions. Here are a few possible values for "?":

• ? = 5, ? = 4
• ? = 6, ? = 3
• ? = 7, ? = 2

4. 6 + 6 > ? - 2:

To solve this equation, let's simplify both sides: 12 > ? - 2

Next, let's isolate the variable "?": ? - 2 < 12

To solve for "?", we add 2 to both sides: ? < 14

Therefore, the solution to this equation is ? < 14.

In summary, the solutions to the given equations are:

1. ? < 2
2. ? = 1.5
3. Infinite solutions for "?"
4. ? < 14