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Tìm số nguyên x biết:
\(\left|x+3\right|+\left|x-5\right|+\left|x+7\right|+\left|x-9\right|+\left|x+11\right|\)= 35.
Tìm x, biết :
a) left(dfrac{31}{20}-dfrac{26}{45}right).dfrac{-36}{35} x left(dfrac{51}{56}+dfrac{8}{21}+dfrac{1}{3}right).dfrac{8}{13}
b) dfrac{-3}{5}.xdfrac{1}{4}+0,75
c) left(dfrac{1}{7}-dfrac{1}{3}right).xdfrac{28}{3}.left(dfrac{1}{4}-dfrac{1}{7}right)
d) dfrac{5}{7}.xdfrac{9}{8}-0,125
e)left(dfrac{2}{11}+dfrac{1}{3}right).xleft(dfrac{1}{7}-dfrac{1}{8}right).56
Đọc tiếp
Tìm x, biết :
a) \(\left(\dfrac{31}{20}-\dfrac{26}{45}\right).\dfrac{-36}{35}< x< \left(\dfrac{51}{56}+\dfrac{8}{21}+\dfrac{1}{3}\right).\dfrac{8}{13}\)
b) \(\dfrac{-3}{5}.x=\dfrac{1}{4}+0,75\)
c) \(\left(\dfrac{1}{7}-\dfrac{1}{3}\right).x=\dfrac{28}{3}.\left(\dfrac{1}{4}-\dfrac{1}{7}\right)\)
d) \(\dfrac{5}{7}.x=\dfrac{9}{8}-0,125\)
e)\(\left(\dfrac{2}{11}+\dfrac{1}{3}\right).x=\left(\dfrac{1}{7}-\dfrac{1}{8}\right).56\)
1.Tìm x \(^{_{ }\in}\) Z biết :
\(\left(x^2-1\right)\left(x^2-4\right)< 0\)
2.*Tìm số nguyên x sao cho :
a. \(\left(x^2-4\right).\left(x^2-10\right)\)
b. \(x\left(x-3\right)< 0\)
3. Tìm các số nguyên x;y sao cho :
\(\left(x-3\right)\left(y+2\right)=-5\)
Giúp tớ bài này nhé! Help me
Tìm x :
\(\frac{3}{\left(x+2\right).\left(x+5\right)}+\frac{5}{\left(x+5\right).\left(x+10\right)}+\frac{7}{\left(x+10\right).\left(x+17\right)}=\frac{x}{\left(xx+2\right).\left(x+17\right)}\)
Giúp mk với 
tìm số nguyên x
\(\left|x-14\right|+\left(-6\right)< -4\)
(-x +31) - 39 = -69 + 11
( -37 )-\(\left|7-x\right|\)= -127
Tìm \(x\in Z\) biết :
\(a.\left(x-4\right).\left(x-7\right)=0\)
\(b:x.\left(x+3\right)=0\)
\(c:\left(x-2\right)\left(5-x\right)=0\)
\(d:\left(x-1\right).\left(x^2+1\right)=0\)
\(\frac{3}{\left(x+2\right).\left(x+5\right)}\) +\(\frac{5}{\left(x+5\right).\left(x+10\right)}\) + \(\frac{7}{\left(x+10\right).\left(x+5\right)}\)= \(\frac{x}{\left(x+2\right).\left(x+17\right)}\)
a, \(\dfrac{5}{2}-3\left(\dfrac{1}{3}-x\right)=\dfrac{1}{4}-7x\)
b,\(60\%.x+\dfrac{2}{3}.x=\dfrac{1}{3}.6\dfrac{1}{3}\)
c, \(\left(\dfrac{9}{2}.x-2x\right).\left(-1\dfrac{4}{7}\right)=\dfrac{11}{4}\)
d,\(\left(x+\dfrac{5}{6}\right).2\dfrac{2}{5}-1\dfrac{1}{4}=35\%\)
Tìm số nguyên x
1/ 17x+3left(-16x-37right)2x+43-4x
2/ -2x-3left(x-17right)34-2left(-x+25right)
3/ left{-3x+2left[45-x-3left(3x+7right)-2xright]+4xright}55-103-57:left[-2left(2x-1right)^2-left(-9right)^0right]-106
4/ -2x+3left{12-2left[3x-left(20+2xright)-4xright]+1right}45
5/ 3x-32-5+1
6/ 15+4x 2x-145
7/ -3left(2x+5right)-16 -4left(3-2xright)
8/ -2x+15 3x-7 19-x
Đọc tiếp
Tìm số nguyên x
1/ \(17x+3\left(-16x-37\right)=2x+43-4x\)
2/ \(-2x-3\left(x-17\right)=34-2\left(-x+25\right)\)
3/ \(\left\{-3x+2\left[45-x-3\left(3x+7\right)-2x\right]+4x\right\}=55-103-57:\left[-2\left(2x-1\right)^2-\left(-9\right)^0\right]=-106\)
4/ \(-2x+3\left\{12-2\left[3x-\left(20+2x\right)-4x\right]+1\right\}=45\)
5/ \(3x-32>-5+1\)
6/ \(15+4x< 2x-145\)
7/ \(-3\left(2x+5\right)-16< -4\left(3-2x\right)\)
8/ \(-2x+15< 3x-7< 19-x\)