Question

[Vũ Tuấn Minh]

tìm x, biết:

x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x+x=380125

45.2+2+x+45.2=2525255

Answer 1

[pham minh quang]

a, x.25=380125

x=380125:25

x=15205

b, (45,2+45.2)+2+x=2525255

45.2.2

Answer 2

[Đinh Tuấn Việt]

45 . 2 + 2 + x + 45 . 2 = 2525255

=> 2 . (45 + 45 + 1) + x = 2525255

=> 182 + x = 2525255

=> x = 2525073