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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
\(5\frac{4}{7}\) + ( 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!!!!!
\(\frac{\frac{5}{4}}{7}+\left(x-2\right)\times\frac{1}{3}=\frac{\frac{17}{3}}{4}\)
\(\frac{35}{4}+\left(x-2\right)\times\frac{1}{3}=\frac{68}{3}\)
\(\frac{35}{4}+\left(x-2\right)=68\)
\(x-2=68-8,75\)
\(x-2=59,25\)
\(x=59,25+2\)
\(x=61,25\)
a) 35 x 34 + 35 x 38 + 65 x 75 + 65 x 45
= 35 x (34+38) + 65 x (75 + 45)
= 35 x 72 + 65 x 120
= 2520 + 7800 = 10320
b) 3 x 25 x 8 + 4 x 37 x 6 + 2 x 38 x 12
= 3 x ( 25 x 8) + 4 x (37 x 6) + 2 x (38 x 12)
= 3 x 200 + 4 x 222 + 2 x 456
= 600 + 888 + 912 = 2400
tk nha
35 x 34 + 35 x 38 + 65 x 75 + 65 x 45
= 35 x ( 34 + 38 ) + 65 x ( 45 + 75 )
= 35 x 72 + 65 x 120
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 .
= [43 x ( 42 + 57 + 1)] - 90
= (43 x 100) -90
= 4300 - 90
= 4210
a,( 42 x 43 + 43 x 57 + 43 ) - 360 : 4
= [ 43 x ( 42 + 57 + 1 ) ] - 90
= [ 43 x 100 ] - 90
= 4300 - 90
= 4210
b, 372 - 19 x 4 - 981 : 9 - 13
= 372 - 76 - 109 - 13
= 174
c, 452 : 2 x 18 - 456 : 3 - 102
= 226 x 18 - 152 - 102
= 4068 - 152 - 102
= 3814
\(78-\left(x-25\right).3\frac{1}{3}=73\)
\(78-\left(x-25\right)\cdot\frac{10}{3}=73\)
\(\left(x-25\right)\cdot\frac{10}{3}=78-73\)
\(\left(x-25\right)\cdot\frac{10}{3}=5\)
\(x-25=5:\frac{10}{3}\)
\(x-25=1,5\)
\(x=25+1,5=26,5\)
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