Х = 5200 - 800*4Х = 5200 - 3200Х = 2000
4900:70 + Х = 127070 + 2000 = 12702070 = 1270
Therefore, the solution does not make sense.
Х = 5200 - 800*4
Х = 5200 - 3200
Х = 2000
4900:70 + Х = 1270
70 + 2000 = 1270
2070 = 1270
Therefore, the solution does not make sense.