Question

Номер 272 1,3,6 пример

Answer 1

1.
39 + x - 84 = 78.
x = 78 - 39 + 84 = 123.

3.
600 - x - 92 = 126.
-x = 126 - 600 + 92.
-x = -382.
x = 382.

6.
871 - x - 157 = 385.
-x = 385 - 871 + 157.
-x = -329.
x = 329.

Answer 2

1. 39 + x - 84 = 78.
x = 78 - 39 + 84 = 123.
3. 600 - x - 92 = 126.
-x = 126 - 600 + 92.
-x = -382.
x = 382.
6. 871 - x - 157 = 385.
-x = 385 - 871 + 157.
-x = -329.
x = 329.