Question

уравнение ( x+184)*3=900. 7*(627-x)=490

Answer 1

1. (x+184)*3=900
3x+552=900
3x=900-552
3x=348
x=348:3
x=116
2. 7*(627-x)=490
4389-7x=490
-7x=-3899
x=-3899:(-7)
x=557

Answer 2

х+184=900:3 х+184=30 х=30-184 х=-154