Решите уравнения :300+х =550+350400-а=200+51200+у=2500-500. Created by karolka23. matematika-ru

Решите уравнения :300+х =550+350400-а=200+51200+у=2500-500...

July 2022 2 8 Report

Решите уравнения :
300+х =550+350
400-а=200+5
1200+у=2500-500

nastya246965 300+х=900

х=900-300

х=600

300+600=550+350

900=900
400-а=205
а=400-205
а=195
400-195=200+5
205=205
1200+у=2000
у=2000-1200
у=800
1200+800=2500-500
2000=2000

1 votes Thanks 1

www575 1)х=550+350-300

х=900-300

х=600
Проверка:
300+600=550+350
900=900

2)-а=200+5-400

-а=205-400

-а=-195|*(-1)

а=195
Проверка:
400-195=200+5
205=205

3)у=2500-500-1200

у=2000-1200

у=800
Проверка:
1200+800=2500-500
2000=2000

0 votes Thanks 1

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