Question

ПОМОИТЕ ПОЖУЙСТА



1) 15х + 19х -68 = 102
2) 2*y*10 = 60
3) (t - 15) – 14 = 39

Answer 1

1)
15х+19х-68=102
34х=170
х=5
2)
2у10=60
2у=6
у=3
3)
(t-15)-14=39
t-15-14=39
t=68