Question

1)340*х-316*2=18,208
2) (31*550-х)*120=10,200

Answer 1

340*x=18,208+632,
340*x=650,208,
x=650,208:340,
x=1,912.
2) (31*550-х)*120=10,200,
31*550-x=10,200:120,
31*550-x=0,085,
17050-x=0,085,
x=17050-0,085=17049,915.