Question

-?-7=49-43. ?-8=36-30 ?-5=18-9

Answer 1

Ответ

13-7=49-43   6=6

14-8=36-30  6=6

16-5=18-9    9=9

Пошаговое объяснение:

Answer 2

To solve these equations, let's break them down step by step:

1. -?-7=49-43

Let's simplify the right side first: 49 - 43 = 6

Now we have: -?-7 = 6

To find the value of the question mark, we need to isolate it. We can do this by performing the inverse operation of subtraction, which is addition.

-?-7 + 7 = 6 + 7

This simplifies to: -? = 13

To find the value of the question mark, we can multiply both sides of the equation by -1:

-1 * -? = -1 * 13

This gives us: ? = -13

Therefore, the value of the question mark is -13.

2. ?-8=36-30

Let's simplify the right side first: 36 - 30 = 6

Now we have: ? - 8 = 6

To find the value of the question mark, we can isolate it by performing the inverse operation of subtraction, which is addition.

? - 8 + 8 = 6 + 8

This simplifies to: ? = 14

Therefore, the value of the question mark is 14.

3. ?-5=18-9

Let's simplify the right side first: 18 - 9 = 9

Now we have: ? - 5 = 9

To find the value of the question mark, we can isolate it by performing the inverse operation of subtraction, which is addition.

? - 5 + 5 = 9 + 5

This simplifies to: ? = 14

Therefore, the value of the question mark is 14.

To summarize: -?-7 = -13 ?-8 = 14 ?-5 = 14