Quy đồng với mẫu số chung là 30
\(\frac{15x}{30}+\frac{30x+10}{30}+\frac{-36x-54}{30}=\frac{5}{30}\)
=> 9x - 44 = 5
=> x = \(\frac{49}{9}\)
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Các câu hỏi tương tự
Tìm x, biết: \(\frac{-1}{2}.\left(3x+5\right)-\frac{2}{9}.\left(9-6x\right)=\frac{3}{5}.\left(x-10\right)-3\)
Tìm x biết
\(\frac{4}{3x+1}+\frac{8}{6x+1}+\frac{9}{9x+3}=\frac{5}{7}\)
Tìm x biết:
\(\left(2x+\frac{1}{3}\right)\left(\frac{3}{4}x-6\right)-\left(3x-\frac{2}{3}\right)\left(\frac{1}{2}x-\frac{6}{9}\right)=1\)
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 15 tìm x biết
a\(\frac{x}{4}-\frac{3}{7}+\frac{2}{5}=\frac{31}{140}\)
b\(\frac{5}{12}+\frac{5}{x}-\frac{1}{8}=\frac{1}{2}\)
c\(x+\frac{1}{9}-\frac{3}{5}=\frac{3}{6}\)
d\(\frac{3}{4}-x+\frac{6}{-11}=\frac{5}{6}\)
e\(x-\frac{1}{9}-\frac{3}{5}=\frac{3}{6}\)
Tìm x
\(\left(2x+\frac{3}{5}\right)^2-\frac{9}{25}=0\)
\(3\left(3x-\frac{1}{2}\right)^3+\frac{1}{9}=0\)
\(-5\left(x+\frac{1}{5}\right)-\frac{1}{2}\left(x-\frac{2}{3}\right)=\frac{3}{2}x-\frac{5}{6}\)
\(3\left(x-\frac{1}{2}\right)-5\left(x+\frac{3}{5}\right)=-x+\frac{1}{5}\)
giải nhanh hộ mình với, mai mình nộp rồi
tìm x 3x(3X--frac{1}{2} )3 + frac{1}{9} 0-5. (x+frac{1}{5})--frac{1}{2} .( x--frac{2}{3})frac{3}{2}x -frac{5}{6}3.(x--frac{1}{2} )--5.(x+frac{3}{5})--x+frac{1}{5}
Đọc tiếp
tìm x
3x(3X--\(\frac{1}{2}\) )3 + \(\frac{1}{9}\)= 0
-5. (x+\(\frac{1}{5}\))--\(\frac{1}{2}\) .( x--\(\frac{2}{3}\))=\(\frac{3}{2}\)x -\(\frac{5}{6}\)
3.(x--\(\frac{1}{2}\) )--5.(x+\(\frac{3}{5}\))=--x+\(\frac{1}{5}\)
Tìm x biết :
\(\left[\frac{6:\frac{3}{5}-1\frac{1}{16}.\frac{6}{7}}{4\frac{1}{5}.\frac{10}{11}+5\frac{2}{11}}-\frac{\left(\frac{3}{20}+\frac{1}{2}-\frac{1}{15}\right).\frac{12}{49}}{3\frac{1}{3}+\frac{2}{9}}\right].x=2\frac{23}{96}\)
Tìm x :
(x+5)-(x-9)=x+2
\(\frac{x-1}{3}+\frac{3x-5}{2}+\frac{2x}{9}+\frac{-5x+3}{9}=\frac{210}{420}\)