Question

Giúp tôi câu 4 đi mà , tôi cần gấp

Answer 1

`[x+4]/5-x+4=x/3-[x-2]/2`

`<=>[6(x+4)-30(x-4)]/30=[10x-15(x-2)]/30`

`<=>6x+24-30x+120=10x-15x+30`

`<=>6x-30x-10x+15x=30-24-120`

`<=>-19x=-114`

`<=>x=6`

Vậy `S={6}`

Answer 2

\(\dfrac{x+4}{5}-x+4=\dfrac{x}{3}-\dfrac{x-2}{2}\)

\(\Leftrightarrow\dfrac{6\left(x+4\right)+30\left(4-x\right)}{30}=\dfrac{10x-15\left(x-2\right)}{30}\)

\(\Leftrightarrow6\left(x+4\right)+30\left(4-x\right)=10x-15\left(x-2\right)\)

\(\Leftrightarrow6x+24+120-30x=10x-15x+30\)

\(\Leftrightarrow-19x=-114\)

\(\Leftrightarrow x=6\)

Vậy \(S=\left\{6\right\}\)

Answer 3

câu 3 nãy bạn viết nhầm đề á:v