Question

(8.y-1942).1947=(2400-1942).19470
Mong các bạn giải nhanh nha!

Answer 1

Ta có: (8y-1942).1947=(2400-1942).19470

\(\Rightarrow\)8y-1942=458.10

\(\Rightarrow\)8y=4580+1942

\(\Rightarrow\)8y=6522

\(\Rightarrow\)y=6522:8=815,25

Answer 2

\(\left(8.y-1942\right).1947=\left(2400-1942\right).19470\)

\(\Leftrightarrow\left(8.y-1942\right).1947=458.19470\)

\(\Leftrightarrow\left(8.y-1942\right).1947=8917260\)

\(\Leftrightarrow8.y-1942=8917260:1947\)

\(\Leftrightarrow8.y-1942=4580\)

\(\Leftrightarrow8.y=4580+1942\)

\(\Leftrightarrow8.y=6522\)

\(\Leftrightarrow y=6522:8\)

\(\Leftrightarrow y=\frac{3261}{4}\)

~ Rất vui vì giúp đc bn ~