Question

А)21560:х=70б)92-7y=36

Answer 1

21560:х=70
х≠0
21560/x=70
21560=70x
70x=21560
x=308

92-7y=36
-7y=36-92
-7y=-56
y=8

Answer 2

А)21560:х=70
   х=21560:70
   х=308
   Проверка
  21560:308=70

б)92-7y=36
   7y=92-36
   7y=56
   y=56:7
   y=8
   Проверка
   92-7*8=36
   1)7*8=56
   2)92-56=36

Answer 3

To solve the equations, we need to find the values of 'x' and 'y.'

а) 21560: x = 70

To find the value of 'x,' we need to isolate it on one side of the equation. To do that, we can multiply both sides by 'x':

21560 = 70x

Now, to solve for 'x,' divide both sides by 70:

x = 21560 / 70 x = 308

So, the value of 'x' is 308.

б) 92 - 7y = 36

To find the value of 'y,' we need to isolate it on one side of the equation. First, let's move the constant term to the other side by adding 7y to both sides:

92 - 7y + 7y = 36 + 7y

The '7y' term cancels out on the left side, and we get:

92 = 36 + 7y

Next, let's move the constant term to the other side by subtracting 36 from both sides:

92 - 36 = 36 + 7y - 36

56 = 7y

Finally, to solve for 'y,' divide both sides by 7:

y = 56 / 7 y = 8

So, the value of 'y' is 8.