Đáp án:
`↓↓`
Giải thích các bước giải:
`k) -35<x<=-29`
`=> x in {-34; -33; -32; -31; -30; -29}`
`l) -2<|1-x|<2`
`=> -2<1-x<2`
`=> 1-x in {-1; 0; 1}`
`=> x in {2; 1; 0}`
`p)|2x-3|-|-2|=15`
`=> |2x-3|-2=15`
`=> |2x-3|=17`
`=>` \(\left[ \begin{array}{l}2x-3=17\\2x-3=-17\end{array} \right.\)
`=>` \(\left[ \begin{array}{l}x=10\\x=-7 \end{array} \right.\)
`m) (2-x)+10=-11`
`=> 2-x+10=-11`
`=> 2-x=-11-10`
`=> 2-x=-21`
`=> x=2-(-21)`
`=> x=23`
`s) -12-5(30-x)=23`
`=> -12-150+5x=23`
`=> -162+5x=23`
`=> 5x=23-(-162)`
`=> 5x=185`
`=> x=37`
