Tìm x:
X - [ 3 + ( 2^4 . 3 - 48 : 6 - 3)] =10
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\(x-\left[3+\left(2^4.3-48:6-3\right)\right]=10\)
\(x-\left[3+\left(16.3-48:6-3\right)\right]=10\)
\(x-\left[3+48-8-3\right]=10\)
\(x-46=10\)
\(x=10+46\)
\(x=56\)
\(x-\left[3+\left(2^4.3-48:6-3\right)\right]=10\)
\(x-\left[3+\left(48-8-3\right)\right]=10\)
\(x-\left[3+37\right]=10\)
\(x-40=10\)
\(x=10+40\)
\(x=50\)
\(\frac{1}{2}-\left(\frac{1}{3}+\frac{1}{4}\right)< x< \frac{1}{48}-\left(\frac{1}{10}-\frac{1}{6}\right)\)
\(\frac{1}{2}-\frac{7}{12}< x< \frac{1}{48}+\frac{1}{15}\)
\(-\frac{1}{12}< x< \frac{7}{80}\)
1) 1/3 x 1/2 x 3/7 = 1/6 x 3/7 = 1/14
2) 5/4 x 1/3 + 1/7 = 5/12 + 1/7 = 47/84
3) 8 x (8/9 - 2/3) = 8 x 2/9 = 16/9
4) 5/6 x 48/20 x 1/2 = 2 x 1/2 = 1
5) (2/5 + 3/4) x 8 = 23/20 x 8 = 46/5
6) 10 x (1/2 - 1/5) = 10 x 3/10 = 3
1) 1/3 x 1/2 x 3/7 = 3/42 = 1/14
2) 5/4 x 1/3 +1/7 = 5/12 + 1/7 = 35/84 + 12/84 = 47/84
3) 8 x ( 8/9 - 2/3 ) = 8 x 2/9 = 16/9
4) 5/6 x 48/20 x 1/2 = 240/240 = 1
5) ( 2/5 + 3/4 ) + 8 = 23/20 + 8 = 23//20 + 160/20 = 183/20
6) 10 x ( 1/2 - 1/5 ) = 10 x 3/10 = 10/1 x 3/10 = 30/10 = 3
\(x-\left[3+\left(2^4.3-48:6-3\right)\right]=10\)
\(x-\left[3+\left(16.3-8-3\right)\right]=10\)
\(x-\left[3+48-8-3\right]=10\)
\(x-40=10\)
\(x=50\)