Question

ai biết làm bài (x + 7,8 ) : 2,3 =5,26 đó bằng mấy 

Answer 1

\(\left(x+7,8\right):2,3=5,26\\ x+7,8=5,26.2,3\\ x+7,8=12,098\\ x=12,098-7,8\\ x=4,298.\)

Answer 2

\(\left(x+7,8\right):2,3=5,26\)

\(x+7,8=5,26\times2,3\)

\(x+7,8=12,098\)

\(x=12,098-7,8=4,298\)

Answer 3

=>x+7,8=5,26*2,3=12,098

=>x=12,098-7,8=4,298