\(\frac{11}{13}-(\frac{5}{42}-x)-(\frac{15}{28}-\frac{11}{13})\)
Những câu hỏi liên quan
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{5}{28}-\frac{11}{13}\right)\)
\(\frac{11}{13}-\frac{5}{42}+x=-\frac{5}{28}+\frac{11}{13}\)
\(x=-\frac{5}{28}+\frac{11}{13}-\frac{11}{13}+\frac{5}{42}\)
\(x=\left(\frac{11}{13}-\frac{11}{13}\right)-\left(\frac{5}{28}-\frac{5}{42}\right)\)
\(x=-\left(\frac{15}{84}-\frac{10}{84}\right)\)
\(x=-\frac{5}{84}\)
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Bài 2 : Tìm x, biết :
\(a.\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
\(b.\left(\frac{7}{12}+x\right)-\frac{11}{12}=\frac{2}{3}\)
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{5}{28}-\frac{11}{13}\right)\)
11/13-(5/42-x)= 243/364
5/42-x=243/364- 11/13
5/42-x= -5/28
x=5/42-(-5/28)
x=25/84
chúc bạn học giỏi
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\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{5}{28}-\frac{11}{13}\right)\)
\(\frac{11}{13}-\frac{5}{42}+x=-\frac{5}{28}+\frac{11}{13}\)
=> \(x=-\frac{5}{28}+\frac{11}{13}-\frac{11}{13}+\frac{5}{42}\)
=> \(x=-\frac{5}{28}+\frac{5}{42}\)
=> \(x=-\frac{210}{1176}+\frac{140}{1176}=\frac{-70}{1176}=\frac{-5}{84}\)
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\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{5}{28}-\frac{11}{13}\right)\)
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=\frac{243}{364}\)
\(\frac{5}{42}-x=\frac{11}{13}-\frac{243}{364}\)
\(\frac{5}{42}-x=\frac{5}{28}\)
\(x=\frac{5}{42}-\frac{5}{28}\)
\(x=-\frac{5}{84}\)
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Xem thêm câu trả lời
\(\frac{11}{13}\) - ( \(\frac{5}{42}\) - x ) = - ( \(\frac{15}{28}\) - \(\frac{11}{13}\) )
\(\Leftrightarrow\frac{11}{13}-\frac{5}{42}+x=-\left(-\frac{113}{364}\right)\)
\(\Leftrightarrow\frac{397}{546}+x=\frac{113}{364}\)
\(\Leftrightarrow x=\frac{113}{364}-\frac{397}{546}=-\frac{5}{12}\)
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\(\Rightarrow\frac{5}{42}-x=\frac{11}{13}+\left(\frac{15}{28}-\frac{11}{13}\right)\)
\(\Rightarrow\frac{5}{42}-x=\frac{15}{28}\)
\(\Rightarrow x=\frac{5}{42}-\frac{15}{28}=-\frac{5}{12}\)
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\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=\frac{113}{364}\)
\(\left(\frac{5}{42}-x\right)=\frac{11}{13}-\frac{113}{364}\)
\(\left(\frac{5}{42}-x\right)=\frac{15}{28}\)
\(x=\frac{5}{42}-\frac{15}{28}\)
\(=-\frac{5}{12}\)
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Xem thêm câu trả lời
Tìm x biết :
\(\frac{11}{13}\)-(\(\frac{5}{42}\)-x)=-(\(\frac{15}{28}\)-\(\frac{11}{13}\))
Giúp Phát Nào
\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
\(\left(\frac{5}{42}-x\right)=\frac{11}{13}-\left(-\frac{15}{28}-\frac{11}{13}\right)\)
\(\frac{5}{42}-x\)= \(\frac{11}{13}-\left(-\frac{503}{364}\right)\)
\(\frac{5}{42}-x\)= \(\frac{811}{364}\)
\(x=\frac{5}{42}-\frac{811}{364}\)
\(x=-\frac{329}{156}\)
Phần tìm x tự tính ra
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Xem thêm câu trả lời
Tìm x biết:
a) \(\frac{11}{3}\)- (\(\frac{5}{42}\)- x ) = - (\(\frac{15}{28}\) - \(\frac{11}{13}\))
b) | x + \(\frac{4}{15}\)| - | -3,75| = -(-2,15)
tìm x biết a) \(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
b) \(\)/ x + \(\frac{4}{15}\)/ - / -37,5 / = - / -2,15 /
Tìm x,y:1..frac{11}{13}-left(frac{5}{42}-xright)-left(frac{15}{28}-frac{11}{13}right)2. left|x+frac{4}{15}right|-left|-3,75right|-left|-2,15right|3. left|4.xright|-left|-13.5right|left|2frac{1}{4}right|4. frac{-2,6}{x}frac{-12}{42}5. left|x+5right|+left(3y-4right)^{2012}0
Đọc tiếp
Tìm x,y:
1..\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
2. \(\left|x+\frac{4}{15}\right|-\left|-3,75\right|=-\left|-2,15\right|\)
3. \(\left|4.x\right|-\left|-13.5\right|=\left|2\frac{1}{4}\right|\)
4. \(\frac{-2,6}{x}=\frac{-12}{42}\)
5. \(\left|x+5\right|+\left(3y-4\right)^{2012}=0\)
Tìm x :
a) \(3x\left(x-\frac{2}{5}\right)=0\)
b)\(\frac{2}{3}:x=2\frac{1}{2}:\left(-0,3\right)\)
c)\(\frac{11}{13}-\left(\frac{5}{42}-x\right)=-\left(\frac{15}{28}-\frac{11}{13}\right)\)
d) \(\left|\frac{2}{3}.x-\frac{2}{3}\right|-\frac{2}{3}=\left|-\frac{2}{3}\right|\)
a) 3. ( x - 2/5 ) = 0
<=> x = 0 : 3 + 2/5
<=> x = 2/5
( Theo cách lớp 6)
Hoặc cách thông thường nek:
3. ( x - 2/5 ) = 0
x - 2/5 = 0 : 3
x - 2/5 = 0
x = 0 + 2/5
x = 2/5
Mấy câu sau làm như vậy nha!
^^ Chúc học tốt!!!!
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Bạn ơi """" 3.x chứ ko phải là 3 đâu
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