Question

[Nguyễn Tú Anh]

tìm X biết 

a) 19,5 - X x 6,3 = 11,625            b) 4,75 + X : 9,4 = 34,266

help me !!!

Answer 1

[Nguyễn Lê Phước Thịnh]

a: \(19,5-x\times6,3=11,625\)

=>\(x\times6,3=19,5-11,625=7,875\)

=>\(x=7,875:6,3=1,25\)

b: \(4,75+X:9,4=34,266\)

=>\(X:9,4=34,266-4,75=29,516\)

=>\(X=29,516\times9,4=277,4504\)

Answer 2

[Nguyễn Minh Dương]

\(a,19,5-x\times6,3=11,625\\ x\times6,3=7,875\\ x=1,25.\\ b,4,75+x:9,4=34,266\\ x:9,4=29,516\\ x=277,4504.\)