tim x ( 236 x38 ) x + 326 = 7478
tim x : x - ( 432 + 344 ) =236
x - 776 = 236
x = 236 + 776
x = 1012
x - ( 432 + 344 ) = 236
x - 776 = 236
x = 236 +776
x = 1012
236 + 15. (4x – 34) = 326
Tim x biet
A, 190 : x du 20 va 250 : x du 12
B, 326 : x du 11 va 553 : x du 13
Tính nhanh
3 x 25 x 4 + 2 x 6 x 37 + 12 x38
3 x 25 x 4 + 2 x 6 x 37 + 12 x38
=12 x 25 + 12 x 37 +12 x 38
=12x(25+37+38)
=12x100
=1200
3 x 25 x 4 + 2 x 6 x 37 + 12 x 38
= 12 x 25 + 12 x 37 + 12 x 38
= 12 x ( 25 + 37 + 38 )
= 12 x 100
= 1200
Chúc em học tốt !
3 x 25 x 4 + 2 x 6 x 37 + 12 x 38
= 12 x 25 + 12 x 37 + 12 x 38
= 12 x ( 25 + 37 + 38 )
= 12 x 100
= 1200
tim x biet
\(\frac{x+2}{327}+\frac{x+3}{326}+\frac{x+4}{325}+\frac{x+5}{324}+\frac{x+349}{5}=0\)
Tìm x:
a.(x+729)x38=54226
(1862-x)x26=38714
b.49203:(x-47)=63
10 266-(x+75)=29
a) (x + 729) x 38 = 54226
x + 729 = 54226 : 38
x + 729 = 1427
x = 1427 - 729
x = 698
b) (1862 - x) x 26 = 38714
1862 - x = 38714 : 26
1862 - x = 1489
x = 1862 - 1489
x = 373
c) 49203 : (x - 47) = 63
x - 47 = 49203 : 63
x - 47 = 781
x = 781 + 47
x = 828
d) 10266 - (x + 75) = 29
x + 75 = 10266 - 29
x + 75 = 10237
x = 10237 - 75
x = 10162
tim x
123+x+2x=2x+345-236
1324+x+x=125-2x-3x
123+x+2x=2x+345-236
<=>x+2x-2x=345-236-123
<=>x=-14
vậy x=-14
1324+x+x=125-2x-3x
<=>x+x-2x-3x=125-1324
<=>-3x=-1199
<=>x=\(\frac{1999}{3}\)
vậy x=\(\frac{1999}{3}\)
k mk nha mấy bạn
\(123+x+2x=2x+345-236\)
\(\Leftrightarrow2x+345-236-2x-x=123\)
\(\Leftrightarrow109-x=123\)
\(\Leftrightarrow x=-14\)
Tính 326 x 2 + 326 x 5 + 326 x 3 + 326 - 326 x 5 - 326 x 3 - 326 x 2
tính bằng cách thuận tiện nhất : 3x 25 x8 +4x 37 x 6 + 2 x38 x 12