Question

a,3-2x≤x+6

b,2x-1/3>4x+9/5

giúp teo với :(((

Answer 1

đề ?

Answer 2

a) \(3-2x\le x+6\)

<=> \(3-6\le x+2x\)

<=> \(-3\le3x\)

<=> \(-1\le x\)

b) \(2x-\frac{1}{3}>4x+\frac{9}{5}\)

<=> \(-2x>\frac{32}{15}\)

<=> \(x< \frac{-16}{12}\)

Answer 3

a) \(3-2x\le x+6\)

\(\Leftrightarrow3-6\le x+2x\)

\(\Leftrightarrow-3\le3x\)

\(\Leftrightarrow x\ge-1\)

b) \(2x-\frac{1}{3}>4x+\frac{9}{5}\)

\(\Leftrightarrow2x-4x>\frac{9}{5}+\frac{1}{3}\)

\(\Leftrightarrow-2x>\frac{32}{15}\)

\(\Leftrightarrow x< \frac{-16}{15}\)