Các câu hỏi tương tự
tìm x
a) \(2\left|x-6\right|+7x-2=\left|x-6\right|+7x\)
b)\(4\left(x-5\right)-7\left(5-x\right)+10\left(5-x\right)=-3\)
Tìm x biết
\(\left|17x-85\right|=-\left|85-17x\right|\)
1)4left(x-5right)-3left(x+7right)-192)7left(x-3right)-5left(3-xright)11x-53)4left(2-xright)+4left(x-3right)144)-5left(2-xright)+4left(x-3right)10x-155)7left(x-9right)-5left(6-xright)-5+11x6)-7left(3x-5right)+2left(7x-14right)287)4left(x-5right)-3left(x+7right)5.left(-4right)
Đọc tiếp
1)\(4\left(x-5\right)-3\left(x+7\right)=-19\)
2)\(7\left(x-3\right)-5\left(3-x\right)=11x-5\)
3)\(4\left(2-x\right)+4\left(x-3\right)=14\)
4)\(-5\left(2-x\right)+4\left(x-3\right)=10x-15\)
5)\(7\left(x-9\right)-5\left(6-x\right)=-5+11x\)
6)\(-7\left(3x-5\right)+2\left(7x-14\right)=28\)
7)\(4\left(x-5\right)-3\left(x+7\right)=5.\left(-4\right)\)
Tim \(x\in Z\), biet rang :
a) \(\left(x+1\right)+\left(x+2\right)+...+\left(x+100\right)=5750\)
b) \(\left(x+2\right)+\left(4x+4\right)+\left(7x+6\right)+...+\left(25x+28\right)+\left(28x+20\right)=1560\)
Tìm GTNN: \(\left|x-1\right|+\left|2x-1\right|+\left|3x-1\right|+...+\left|7x-1\right|+\left|8x-1\right|\)
\(\left|x-5\right|-7\left(x+4\right)=5-7x\)
Tìm x
a) \(\left(\frac{-5}{3}\right)< x< \frac{-24}{35}.\left(\frac{-5}{6}\right)\)
b) \(\left(7x-11\right)^3=\left(-3\right)^2.15+208\)
a.2left(x-5right)-3left(x+7right)14b.5left(x-6right)-2left(x+3right)12c.3left(x-4right)-left(8-xright)12d.-7left(3x-5right)+2left(7x-14right)28e.5left(3-2xright)+5left(x-4right)6-4xf.-5left(2-xright)+4left(x-3right)10x-15g.2left(4x-8right)-7left(3+xright)|-4|left(3-2right)h.8left(x-|-7|right)-6left(x-2right)|-8|.6-50cứ từ từ mà giải cũng đc
Đọc tiếp
\(a.2\left(x-5\right)-3\left(x+7\right)=14\)
\(b.5\left(x-6\right)-2\left(x+3\right)=12\)
\(c.3\left(x-4\right)-\left(8-x\right)=12\)
\(d.-7\left(3x-5\right)+2\left(7x-14\right)=28\)
\(e.5\left(3-2x\right)+5\left(x-4\right)=6-4x\)
\(f.-5\left(2-x\right)+4\left(x-3\right)=10x-15\)
\(g.2\left(4x-8\right)-7\left(3+x\right)=|-4|\left(3-2\right)\)
\(h.8\left(x-|-7|\right)-6\left(x-2\right)=|-8|.6-50\)
cứ từ từ mà giải cũng đc
\(2a-\left(5-4a\right)+\left(6a-1\right)-\left(2+a\right)\)
\(5a-2b+3-\left(2a-5b+6\right)+\left(a+3b-1\right)\)
\(6x\left(x-1\right)-1\left(6x^2-8x+3\right)=7-\left(x-1\right)\)
\(7x\left(2x-1\right)-\left(14x^2-8x+5\right)=7-\left(-2x+3\right)\)
Thanks các bạn nhiều nha