Question

1.    Tìm y biết:  y × 10 – 12 = 188

Answer 1

yx10=188+12

y x10=200

y=200:10

y=20

Answer 2

\(y\times10-12=188\)

\(y\times10=188+12\)

\(y\times10=200\)

\(y=200:10\)

\(=>y=20\)

Answer 3

\(y\times10-12=188\)

\(\Rightarrow y\times10=188+12\)

\(\Rightarrow y\times10=200\)

\(\Rightarrow y=200:10\)

\(\Rightarrow y=20\)