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\(\frac{10}{3}x+\frac{67}{4}=-\frac{53}{4}\)
<=> \(\frac{10}{3}x=-30\)
=> x = -9
\(3\frac{1}{3}x+16\frac{3}{4}=-13,25\)
<=> \(\frac{10}{3}x+\frac{67}{4}=-\frac{53}{4}\)\(\frac{10}{3}x=-\frac{53}{4}-\frac{67}{4}\)=> \(\frac{10}{3}x=-\frac{120}{4}=-30\)
<=> X=(-3)*3 => X=-9
Đáp số: x=-9
\(3\frac{1}{3}x+16\frac{3}{4}=-13,25\)
\(\Leftrightarrow\frac{3\times3+1}{3}x+\frac{16\times4+3}{4}=-13,25\)
\(\Leftrightarrow\frac{9+1}{3}x+\frac{64+3}{4}=-13,25\)
\(\Leftrightarrow\frac{10}{3}x+\frac{67}{4}=-13,25\)
\(\Leftrightarrow\frac{10}{3}x+16,75=-13,25\)
\(\Leftrightarrow\frac{10}{3}x=-13,25-16,75\)
\(\Leftrightarrow\frac{10}{3}x=-30\)
\(\Leftrightarrow x=-30\div\frac{10}{3}\)
\(\Leftrightarrow x=\frac{-30}{1}\times\frac{3}{10}\)
\(\Leftrightarrow x=\frac{-90}{10}\)
\(\Leftrightarrow x=-9\)
8/3*x+8/3=10/3
8/3*(x+1)=10/3
x+1=5/4
x=1/4 okay
\(2\frac{2}{3}x+\frac{8}{3}=3\frac{1}{3}\)
\(\Rightarrow\frac{8}{3}x+\frac{8}{3}=\frac{10}{3}\)
\(\Rightarrow\frac{8}{3}.\left(x+1\right)=\frac{10}{3}\)
\(\Rightarrow x=\frac{10}{3}:\frac{8}{3}\)
\(\Rightarrow x=\frac{10}{3}.\frac{3}{8}\)
\(\Rightarrow x=\frac{5}{4}\)
a) (7x - 11)3 = 25 x 52 + 200
(7x - 11)3 = 800 + 200
(7x - 11)3 = 1000
(7x - 11)3 = 103
=> 7x - 11 = 10
=> 7x = 10 + 11
=> 7x = 21
=> x = 3
b) \(3\frac{1}{3}x+16\frac{3}{4}=-13,25\)
\(3\frac{1}{3}x=-13,25-16\frac{3}{4}\)
\(\frac{10}{3}x=-30\)
\(x=-9\)
<=> 3 - 1/6 + x = 2/3
<=> 17/6 + x = 2/3
<=> x = 2/3 - 17/6
=> x = -13/6
Vậy x = -13/6
\(3-\left(\frac{1}{6}-x\right)=\frac{2}{3}\)
\(\Rightarrow\frac{1}{6}-x=3-\frac{2}{3}\)
\(\Rightarrow\frac{1}{6}-x=\frac{7}{3}\)
\(\Rightarrow x=\frac{1}{6}-\frac{7}{3}\)
\(\Rightarrow x=\frac{-13}{6}\)