Question

670 - x = 326
506 - X = 245
X + 627 = 820​

Answer 1

Ответ:

1) x=344

2) x=261

3) x=193

Answer 2

Ответ:

670-x=326

x=670+326

x996

996-670=326

506- x=245

x=506+245

x=751

751-506=245

x+627=820

x=820-627

x=193

193+627=820