\(-\dfrac{12}{13}x=6\dfrac{1}{13}+5\)
\(-\dfrac{12}{13}x=\dfrac{144}{13}\)
\(x=\dfrac{144}{13}:-\dfrac{12}{13}\)
\(x=-12\)
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\(\dfrac{15}{12}+\dfrac{5}{13}-\dfrac{3}{12}-\dfrac{18}{13}-\dfrac{1}{3}\)
\(14.\dfrac{3}{2}+\dfrac{6}{5}:\left(\dfrac{-2}{5}\right)\)
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MY
17 tháng 8 2021 lúc 10:56
Tính nhanh
\(c,\dfrac{-5}{13}-\left(\dfrac{3}{5}+\dfrac{3}{13}-\dfrac{4}{10}\right)\)
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\(d,\dfrac{2}{3x}-\dfrac{3}{12}=\dfrac{4}{5}-\left(\dfrac{7}{x}-2\right)\)
\(e,2\left(x-1\right)=\left(x-1\right)^2\)
(-\(\dfrac{5}{9}\) x \(\dfrac{-5}{13}\))+( - \(\dfrac{5}{9}\) x \(\dfrac{6}{13}\))
Câu 1: Tìm x, biết:a)x^2-dfrac{16}{25}0 b)dfrac{2}{5}-left|dfrac{1}{2}-xright|6C2.Tính giá của biểu thức: a)A1dfrac{5}{13}-0,25-left(2dfrac{5}{9}+dfrac{18}{13}-dfrac{1}{4}right)b)dfrac{dfrac{3}{5}.7^2-3.5^6+dfrac{3}{5}.3^9}{dfrac{3}{4}.7^2-dfrac{3}{4}.5^7+dfrac{3}{4}.3^9}
Đọc tiếp
Câu 1: Tìm x, biết:
a)\(x^2-\dfrac{16}{25}=0\) b)\(\dfrac{2}{5}-\left|\dfrac{1}{2}-x\right|=6\)
C2.Tính giá của biểu thức:
a)\(A=1\dfrac{5}{13}-0,25-\left(2\dfrac{5}{9}+\dfrac{18}{13}-\dfrac{1}{4}\right)\)
b)\(\dfrac{\dfrac{3}{5}.7^2-3.5^6+\dfrac{3}{5}.3^9}{\dfrac{3}{4}.7^2-\dfrac{3}{4}.5^7+\dfrac{3}{4}.3^9}\)
NV
13 tháng 12 2022 lúc 19:54
\(\left(2x-1\right)^2-\dfrac{1}{4}=2\)
\(\left(-2\dfrac{1}{5}+\dfrac{2}{7}-\dfrac{12}{13}\right)-\left(-\dfrac{5}{7}+\dfrac{1}{13}\right)\)
MY
17 tháng 8 2021 lúc 10:07
Bài 1: Thực hiện phép tính sau: a,dfrac{9}{18}-dfrac{-7}{12}+dfrac{13}{32}b,dfrac{5}{-8}+dfrac{14}{25}-dfrac{6}{10}
Đọc tiếp
Bài 1: Thực hiện phép tính sau:
\(a,\dfrac{9}{18}-\dfrac{-7}{12}+\dfrac{13}{32}\)
\(b,\dfrac{5}{-8}+\dfrac{14}{25}-\dfrac{6}{10}\)
a,3/2-5/6:(1/2)2+\(\sqrt{0,25-\sqrt{\dfrac{1}{4}}}\)
b,-4/3:2/9+13/12:-13/8
c,(-1/2)2-[-1/6:|-1+5|-\(\sqrt{64}.\left(\dfrac{1}{4}\right)^2\)
d,15^11.5^7.9^2/5^18.27^6
TL
28 tháng 9 2023 lúc 18:44
\(d,\dfrac{\left(13\dfrac{1}{4}-2\dfrac{5}{27}-10\dfrac{5}{6}\right).230\dfrac{1}{25}+46\dfrac{3}{4}}{\left(1\dfrac{3}{7}+\dfrac{10}{3}\right):\left(12\dfrac{1}{3}-14\dfrac{2}{7}\right)}\)