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122 x 32 + 98 x 142
= 17820
nha bn mik nhanh nhất k mik mik k lại
547 + ( x-2 ) x 1/3 = 1734
39/7 + ( x- 2 ) x 1/3 = 71/4
( x -2 ) x 1/3 = 71/4 - 39/7
( x -2 ) x 1/3 = 341/28
x - 2 = 341/28 : 1/3
x -2 = 341/28 x 3
x -2 = 1023/28
x = 1023/28 + 2
x = 1079/28
Bây giờ thì k cho mình nha
\(x\times2019-x=2018\times2018+2018\)
\(x\times\left(2019-1\right)=2018\times\left(2018+1\right)\)
\(x\times2018=2018\times2019\)
\(\Rightarrow x=2019\)
X x 2019 - x =2018 x 2018 + 2018
X x(2019-1) = 2018 x(2018 + 1)
X x 2018 = 2018 x 2019
=> X=2019
Vậy X=2019.
76,22 - y x 3 = 30,61 x 2
=> 76,22 - y x 3 = 61,22
=> y x 3 = 76,22 -61,22 = 15
=> y = 15 : 3 = 5
\(76,22-y\times3=30,61\times2\)
\(76,22-y\times3=61,22\)
\(y\times3=76,22-61,22\)
\(y\times3=15\)
\(y=15\div3\)
\(y=5\)
\(5\frac{4}{7}\) + ( x-2 ) x 1/3 = \(17\frac{3}{4}\)
39/7 + ( x- 2 ) x 1/3 = 71/4
( x -2 ) x 1/3 = 71/4 - 39/7
( x -2 ) x 1/3 = 341/28
x - 2 = 341/28 : 1/3
x -2 = 341/28 x 3
x -2 = 1023/28
x = 1023/28 + 2
x = 1079/28
P/s : số lớn tek!?
Cbht!!!!!
\(\frac{\frac{5}{4}}{7}+\left(x-2\right)\times\frac{1}{3}=\frac{\frac{17}{3}}{4}\)
\(\frac{35}{4}+\left(x-2\right)\times\frac{1}{3}=\frac{68}{3}\)
\(\frac{35}{4}+\left(x-2\right)=68\)
\(x-2=68-8,75\)
\(x-2=59,25\)
\(x=59,25+2\)
\(x=61,25\)
(x+1)+(x+2)+(x+3)+(x+4)=110
(x+x+x+x)+(1+2+3+4)=110
4x+10=110
4x=110-10
4x=100
x=100:4
x=25
[ x + 1 ] + [ x + 2 ] + [ x + 3 ] + [ x + 4 ] = 110
=> x + 1 + x + 2 + x + 3 + x + 4 = 110
=> ( x + x + x + x ) + ( 1 + 2 + 3 + 4 ) = 110
=> 4x + 10 = 110
=> 4x = 100
=> x = 25
5/4/7 + ( x - 2 ) x 1/ 3 = 17 / 3 / 4
35/4 + ( x - 2 ) x 1/3 = 68/3
( x -2 ) x 1/3 = 68/3 - 35/4
( x-2 ) x 1/3 = 167 / 12
x - 2 = 167 / 12 : 1/ 3
x -2 = 167 / 4
x = 167 / 4 + 2
x = 175/4 .
X : 0,5 + X : 0,25 = 24
X x 2 + X x 4 = 24
X x ( 2 + 4 ) = 24
X x 6 = 24
X = 24 : 6
X = 4
9000:2x100+24x97
= 4500 x100+ 2328= 450000+2328=452328
\(9000:2x100=24x97=452328\)
\(Knha!!!\)