a) \(x\times15+x\times13=560\times45\)
\(\Rightarrow x\times\left(15+13\right)=25200\)
\(\Rightarrow x\times28=25200\)
\(\Rightarrow x=25200:28\)
\(\Rightarrow x=900\)
a) \(x\times15+x\times13=560\times45\)
\(\Rightarrow x\times\left(15+13\right)=25200\)
\(\Rightarrow x\times28=25200\)
\(\Rightarrow x=25200:28\)
\(\Rightarrow x=900\)
. Tìm x:
a./ X x 15 + X x 13 = 560 x 45 b./ (X x 4 + X x 6 ) : 25 = 42
Tìm X :
A) 846 : X x 2 = 9
B) X x 15 + X x 13 = 560 x 45
tìm x a) x x 15 + x x 13 = 560 x 45 b) x x 125 - x x 73 = 1196
Giúp mình với^^Bài 4 tìm x
a ) X 36 = 972
b ) ( X - 47 ) x 21 = 840
c ) X x 22 + X x 50 = 504
d ) 254 : x = 14 ( dư 16 )
e ) 729 : X = 81
f ) y x 15 + y x 13 = 560 x 45
giúp em với !
a)x*15+ x*13=560*45
b)x*125-x*73=1196
tìm x biết:
a. 12+x \ 42 = 5/6
b. 25-x \ 40 = 3/8
c. 13+x \ 20 = 3/4
d. 23-x/25 = 4/5
X x 15 + X x 13 =560 x 45
Tim x
a) X x 15 + X x 13 = 560 x 45
( X + X x 2 ) : 34 = 504
360 : X - 126 : X = 6
58 x X - 934 = 6722
14968 - X x 5 = 4968
Tìm x
a) X x 15 + X x 13 = 560 x 45
( X + X x 2 ) : 34 = 504
360 : X - 126 = X = 6
58 x X - 934 = 6722
14968 - X x 5 = 4968
b) X x 125 - X x 73 = 1196
246 : X = 34 : X = 5
2005 + X x 34 = 5337
X : 1234 = 127 ( dư 360 )