Tìm số nguyên x.
1/-2x-(x-17)=34-(-x+25). 2/17x–(–16x–37) = 2x + 43.
3/–2x–3 . (x–17 = 34–2(–x+ 25).
4/17x +3.(-16x–37 ) =2x +43–4x.
5/{-3x+2[45-x-3(3x+7)-2x]+4x}=55-103.
6/-57:[-2.(2x–1)^2–(-9)^0]=-106
Loga
Sinh Học lớp 12
