Question

tìm x,biết 2x+1/4=-1

Answer 1

Ta có: \(2x+\dfrac{1}{4}=-1\)

\(\Leftrightarrow2x=-\dfrac{5}{4}\)

hay \(x=-\dfrac{5}{8}\)

Vậy: \(x=-\dfrac{5}{8}\)

Answer 2

\(\dfrac{2x+1}{4}=-1\)

\(\Leftrightarrow2x+1=-4\)

\(\Leftrightarrow2x=-4-1=-5\)

\(\Leftrightarrow x=-\dfrac{5}{2}\)

Answer 3

2x=-1-1/4

2x=-5/4

x=-5/8

Chúc em học tốt^^