Решите 5 уровнений 4x+x+605=700 56-2y=36 4(y+7x)+28=400 y+409+y=511 48-3x=36

Robert’s father and elder brother work on an oil rig. They get up at the same time every day and do the same work every day. Sometimes Robert’s father feels sad because he doesn’t see his family for weeks. He often sends e-mails to his family. He likes watching films. He goes to the small cinema on the oil rig and watches a film. He doesn’t like watching movies on television. Robert’s brother’s name is Dave. He has his own small room on the oil rig. There is a table and a chair on the right of the door and there is a bed along the wall. Dave likes listening to music. He has got an MP3 player and lots of CDs. He often goes to the gym and does some exercises. Dave enjoys texting friends on his mobile phone.

5х=700-6055х=95х=192у=56-362у=20у=20:2у=102у=511-4092у=102у=102:2у=513х=48-363х=12х=12:3х=4

3) 4(9+7x)+28=400 36+28x+28=400 28x=400-36-28 28x=336 X=336:28 X=12