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tìm x biết: a,left(frac{1}{3}.xright):frac{2}{3}1frac{2}{3}:frac{2}{5} b,4,5:0,32,25:left(0,1.xright)c,8:left(frac{1}{4}.xright)2:0,02d,3:2frac{1}{4}frac{3}{4}:left(6.xright)e,3,8:left(2.xright)frac{1}{4}:2frac{2}{3}f,left(0,25.xright):3frac{5}{6}:0,125g,1frac{1}{3}:0,8frac{2}{3}:left(0.1.xright)
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tìm x biết:
a,\(\left(\frac{1}{3}.x\right):\frac{2}{3}=1\frac{2}{3}:\frac{2}{5}\)
b,\(4,5:0,3=2,25:\left(0,1.x\right)\)
c,\(8:\left(\frac{1}{4}.x\right)=2:0,02\)
d,\(3:2\frac{1}{4}=\frac{3}{4}:\left(6.x\right)\)
e,\(3,8:\left(2.x\right)=\frac{1}{4}:2\frac{2}{3}\)
f,\(\left(0,25.x\right):3=\frac{5}{6}:0,125\)
g,\(1\frac{1}{3}:0,8=\frac{2}{3}:\left(0.1.x\right)\)
tìm x, x\(\in\)Q:
a) \(\frac{\left(x+\frac{3}{4}\right).\frac{7}{2}-\frac{1}{6}}{-\left(\frac{4}{5}+\frac{1}{3}\right).\frac{1}{2}+1}=2\frac{33}{52}\)
b) \(\frac{\left(5-\frac{2}{7}\right).\frac{7}{9}:\frac{3}{5}}{\left(3x-\frac{5}{6}\right):\frac{1}{7}}=5\frac{5}{21}\)
Tìm số nguyên x biết: a) \(-4\frac{3}{5}.2\frac{4}{23}\le x\le-2\frac{3}{5}:1\frac{6}{15}\)
b) \(-4\frac{1}{3}.\left(\frac{1}{2}-\frac{1}{6}\right)\le x\le-\frac{2}{3}\left(\frac{1}{3}-\frac{1}{2}-\frac{3}{4}\right)\)
tìm x,y biết:
a)\(\left(2x-5\right)^{2000}+\left(3y+4\right)^{2002}\le0\)
b)\(x=6:\frac{1}{3}-0,8:\frac{1,5}{\frac{3}{2}.0,4.\frac{50}{1:\frac{1}{2}}}+\frac{1}{4}+\frac{1+\frac{1}{2}.\frac{1}{0,25}}{6-\frac{46}{1+2,2.10}}\)
c)\(y=77^{-1}.7^4.11^2.\left(1.11\right)^4.\left(7^2\right)^{-8}.\left(7^{-8}\right)^{-3}.\frac{1}{\left(-11\right)^{-3}}\)
1.Tìm x biếta) left(frac{2}{5}-xright):1frac{1}{3}+frac{1}{2}-4b) left(-3+frac{3}{x}-frac{1}{3}right):left(1+frac{2}{5}+frac{2}{3}right)-frac{5}{4}c) frac{-3x}{4}.left(frac{1}{x}+frac{2}{7}right)0d) 3-frac{1-frac{1}{2}}{1+frac{1}{x}}2frac{2}{3}e)left(2x+frac{1}{3}right)^2frac{9}{16}f) 4^x+4^{x+3}4160g) left(x-2,5right):1frac{1}{2}x:2h) left(frac{1}{3}+xright):left(x+frac{3}{4}right)frac{7}{9}i) 0,81:frac{x}{2}frac{16}{x^4}:left(-0,9right)2. Tìm x, biết:a)left(152frac{2}{4}-148frac{3}{8}right):0,...
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1.Tìm x biết
a) \(\left(\frac{2}{5}-x\right)\):\(1\frac{1}{3}+\frac{1}{2}=-4\)
b) \(\left(-3+\frac{3}{x}-\frac{1}{3}\right):\left(1+\frac{2}{5}+\frac{2}{3}\right)=-\frac{5}{4}\)
c) \(\frac{-3x}{4}.\left(\frac{1}{x}+\frac{2}{7}\right)=0\)
d) 3-\(\frac{1-\frac{1}{2}}{1+\frac{1}{x}}=2\frac{2}{3}\)
e)\(\left(2x+\frac{1}{3}\right)^2=\frac{9}{16}\)
f) \(4^x+4^{x+3}=4160\)
g) \(\left(x-2,5\right):1\frac{1}{2}=x:2\)
h) \(\left(\frac{1}{3}+x\right):\left(x+\frac{3}{4}\right)=\frac{7}{9}\)
i) 0,81:\(\frac{x}{2}=\frac{16}{x^4}:\left(-0,9\right)\)
2. Tìm x, biết:
a)\(\left(152\frac{2}{4}-148\frac{3}{8}\right):0,2=x:0,3\)
b) \(\left[\left(6\frac{3}{5}-3\frac{3}{14}\right):2,5\right]:\left(21-1,25\right)=x:5\frac{5}{6}\)
TÌM X
a,\(\left(\frac{1}{7}x-\frac{2}{7}\right).\left(\frac{1}{5}x+\frac{3}{5}\right).\left(\frac{1}{3}x+\frac{4}{3}\right)=6\)
b,\(\left(x^2-4\right).\left(2x+\frac{4}{3}\right)=0\)
tìm x
a) \(\frac{3}{4}+\frac{1}{4}.x=\frac{1}{2}+\frac{1}{2}.x\)
b) \(\frac{1}{3}.x-\frac{2}{5}.\left(x+1\right)=0\)
c)\(\left(\frac{1}{4}.x-1,5\right)+\left(\frac{5}{6}.x-3\right)-\left(\frac{5}{8}.x-0,5\right)=-4,5\)
frac{4}{9}:frac{-1}{7}+6frac{5}{9}.frac{2}{3}left(frac{-1}{3}right)^4.frac{4}{11}+frac{7}{11}.left(frac{-1}{3}right)^2left(frac{-1}{7}right)^0-2frac{4}{9}:left(frac{2}{3}right)^2left(frac{1}{3}-frac{5}{6}right)^2+frac{5}{6}:2Tìm xleft(frac{3}{5}-frac{1}{2}xright)^2+812frac{7}{12}-left|frac{1}{3}-frac{1}{2}xright|frac{1}{3}frac{13}{12}-frac{1}{3}.left|frac{1}{5}-frac{1}{3}xright|frac{1}{2}Nhanh hộ mình nhaCảm ơn mn
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\(\frac{4}{9}:\frac{-1}{7}+6\frac{5}{9}.\frac{2}{3}\)
\(\left(\frac{-1}{3}\right)^4.\frac{4}{11}+\frac{7}{11}.\left(\frac{-1}{3}\right)^2\)
\(\left(\frac{-1}{7}\right)^0-2\frac{4}{9}:\left(\frac{2}{3}\right)^2\)
\(\left(\frac{1}{3}-\frac{5}{6}\right)^2+\frac{5}{6}:2\)
Tìm x
\(\left(\frac{3}{5}-\frac{1}{2}x\right)^2+8=12\)
\(\frac{7}{12}-\left|\frac{1}{3}-\frac{1}{2}x\right|=\frac{1}{3}\)
\(\frac{13}{12}-\frac{1}{3}.\left|\frac{1}{5}-\frac{1}{3}x\right|=\frac{1}{2}\)
Nhanh hộ mình nha
Cảm ơn mn
Tìm x biết \(\frac{2}{3}\left(\frac{3}{5}x+\frac{1}{2}\right)=\frac{4}{5}.\left(\frac{5}{6}x-\frac{4}{3}\right)+\frac{1}{2}x-\frac{4}{5}\)