Question

Giải các pt bậc nhất 1 ẩn:

\(4x+5=0\)

\(6x+7=0\)

\(9x+1=0\)

Answer 1

\(4x+5=0\)

\(\Leftrightarrow4x=-5\)

\(\Leftrightarrow x=\frac{-5}{4}\)

Vậy....

Answer 2

\(6x+7=0\)

\(\Leftrightarrow6x=-7\)

\(\Leftrightarrow x=\frac{-7}{6}\)

Vậy....

Answer 3

\(9x+1=0\)

\(\Leftrightarrow9x=-1\)

\(\Leftrightarrow x=\frac{-1}{9}\)

Vậy....