Question

4-×=16; ×-10=20 решить уравнение

Answer 1

4-x=16

x=4-16

x=-12

x-10=20

x=20+10

x=30

Answer 2

To solve the equations, we need to find the value of "×." Let's solve them one by one:

1. 4-×=16:

To find the value of "×," we need to isolate it on one side of the equation. We'll do this by performing inverse operations.

Add "×" to both sides to get rid of the "-×" term on the left side:

4 - × + × = 16 + ×

On the left side, the "-×" and "+×" cancel out:

4 = 16 + ×

Now, subtract 16 from both sides to isolate "×":

4 - 16 = 16 + × - 16

-12 = ×

So, × = -12

2. ×-10=20:

To find the value of "×," we'll again isolate it on one side of the equation by performing inverse operations.

Add 10 to both sides to get rid of the "-10" term on the left side:

× - 10 + 10 = 20 + 10

On the left side, the "-10" and "+10" cancel out:

× = 30

So, × = 30

To summarize, the solutions to the equations are:

1. × = -12
2. × = 30