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Tìm x:a, x + 30%x -1,31b,left(x-frac{1}{2}right):frac{1}{3}+frac{5}{7}9frac{5}{7}c, frac{1}{2}x-frac{3}{4}frac{14}{9}.frac{3}{7}d,frac{-5}{6}-xfrac{7}{12}+frac{-1}{3}e,frac{x+3}{-15}frac{1}{3}f,left(4,5-2xright).left(-1frac{4}{7}right)frac{11}{14}GIÚP MIK LM TRONG TỐI NAY NHA, MAI MIK PHẢI NỘP RỒI
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Tìm x:
a, x + 30%x = -1,31
b,\(\left(x-\frac{1}{2}\right):\frac{1}{3}+\frac{5}{7}=9\frac{5}{7}\)
c, \(\frac{1}{2}x-\frac{3}{4}=\frac{14}{9}.\frac{3}{7}\)
d,\(\frac{-5}{6}-x=\frac{7}{12}+\frac{-1}{3}\)
e,\(\frac{x+3}{-15}=\frac{1}{3}\)
f,\(\left(4,5-2x\right).\left(-1\frac{4}{7}\right)=\frac{11}{14}\)
GIÚP MIK LM TRONG TỐI NAY NHA, MAI MIK PHẢI NỘP RỒI
Bài 8: Tìm số nguyên x biết
a) \(\left(\frac{-12}{27}+\frac{2}{3}\right)+\frac{-2}{9}\le x\le\left(\frac{11}{7}+\frac{2}{5}\right)+\frac{7}{5}+\frac{3}{7}\) b\(\frac{-x}{2}+\frac{2x}{3}+\frac{x+1}{4}+\frac{2x+1}{6}=\frac{8}{3}\)
c)\(\frac{3}{2x+1}+\frac{10}{4x+2}-\frac{6}{6x+3}=\frac{12}{26}\)
Bài 1: Tìm xa. x-frac{5}{12}-frac{4}{9}frac{-13}{18}b. 2-left(x+frac{3}{7}right)frac{9}{-21}c. x-frac{-3}{11}frac{6}{22}+frac{1}{4}d. frac{13}{36}-frac{5}{18}-xfrac{-11}{9}e. x-frac{3}{7}:frac{9}{14}frac{-17}{3}f. left(x-frac{1}{2}right):frac{3}{11}frac{11}{4}g. left(2x+frac{3}{8}right).frac{7}{4}-frac{21}{32}h. x-frac{x}{3}frac{3}{57}:frac{12}{19}Vì dài qua cho nên bài 2 mình để riêng nhé
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Bài 1: Tìm x
a. \(x-\frac{5}{12}-\frac{4}{9}=\frac{-13}{18}\)
b. \(2-\left(x+\frac{3}{7}\right)=\frac{9}{-21}\)
c. \(x-\frac{-3}{11}=\frac{6}{22}+\frac{1}{4}\)
d. \(\frac{13}{36}-\frac{5}{18}-x=\frac{-11}{9}\)
e. \(x-\frac{3}{7}:\frac{9}{14}=\frac{-17}{3}\)
f. \(\left(x-\frac{1}{2}\right):\frac{3}{11}=\frac{11}{4}\)
g. \(\left(2x+\frac{3}{8}\right).\frac{7}{4}=-\frac{21}{32}\)
h. \(x-\frac{x}{3}=\frac{3}{57}:\frac{12}{19}\)
Vì dài qua cho nên bài 2 mình để riêng nhé
Tìm x biết:a) \(-\frac{2}{3}\left(x-\frac{1}{4}\right)=\frac{1}{3}\left(2x-1\right)\)
b)\(\frac{1}{5}.2^x+\frac{1}{3}.2^x^{+1}=\frac{1}{5}.2^7+\frac{1}{3}2^8\)
Tìm x:
a,\(x:\left(9\frac{1}{2}-\frac{3}{2}\right)=\frac{\frac{2}{5}+\frac{4}{9}-\frac{5}{11}}{\frac{8}{5}+\frac{16}{9}-\frac{20}{11}}\)
b,\(\left|2x-\frac{1}{3}\right|-\left(-2^2\right)=4\left(\frac{1}{-2}\right)^3\)
Tìm số nguyên x
a) \(\frac{1}{3}+\frac{-2}{5}+\frac{1}{6}+\frac{-1}{5}\le x< \frac{-3}{4}+\frac{2}{7}+\frac{-1}{4}+\frac{3}{5}+\frac{5}{7}\)
b)\(\frac{5}{17}+\frac{-9}{4}+\frac{-26}{31}+\frac{12}{17}+\frac{-11}{31}< \frac{x}{9}\le\frac{-3}{7}+\frac{7}{15}+\frac{4}{-7}+\frac{8}{15}\)
1 tìm x biết ;a, 0-|x + 1| 5 b, 2 - | frac{3}{4}- x | frac{7}{12}c, 2 | frac{1}{2}x - frac{1}{3}| - frac{3}{2} frac{1}{4}d, | x - frac{1}{3}| frac{5}{6}e, frac{3}{4}- 2 | 2x - frac{2}{3}| 2f, frac{2x-1}{2} frac{5+3x}{3}
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1 tìm x biết ;
a, 0-|x + 1| = 5
b, 2 - | \(\frac{3}{4}\)- x | = \(\frac{7}{12}\)
c, 2 | \(\frac{1}{2}\)x - \(\frac{1}{3}\)| - \(\frac{3}{2}\)= \(\frac{1}{4}\)
d, | x - \(\frac{1}{3}\)| = \(\frac{5}{6}\)
e, \(\frac{3}{4}\)- 2 | 2x - \(\frac{2}{3}\)| = 2
f, \(\frac{2x-1}{2}\)= \(\frac{5+3x}{3}\)
1 tìm x biết ;a, 0-|x + 1| 5 b, 2 - | frac{3}{4}- x | frac{7}{12}c, 2 | frac{1}{2}x - frac{1}{3}| - frac{3}{2} frac{1}{4}d, | x - frac{1}{3}| frac{5}{6}e, frac{3}{4}- 2 | 2x - frac{2}{3}| 2f, frac{2x-1}{2} frac{5+3x}{3}
Đọc tiếp
1 tìm x biết ;
a, 0-|x + 1| = 5
b, 2 - | \(\frac{3}{4}\)- x | = \(\frac{7}{12}\)
c, 2 | \(\frac{1}{2}\)x - \(\frac{1}{3}\)| - \(\frac{3}{2}\)= \(\frac{1}{4}\)
d, | x - \(\frac{1}{3}\)| = \(\frac{5}{6}\)
e, \(\frac{3}{4}\)- 2 | 2x - \(\frac{2}{3}\)| = 2
f, \(\frac{2x-1}{2}\)= \(\frac{5+3x}{3}\)
a) \(1\frac{3}{8}:x=-5\frac{1}{2}\)
b) \(3\frac{1}{5}-2\frac{1}{3}x=-1\frac{3}{5}+1\frac{7}{10}\)
c) \(x-\frac{2}{3}.(-\frac{3}{7})=-\frac{9}{14}\)
d) \(2x+50\%.x=\frac{-2}{3}\)