Tìm x biết 5 * x + 3 * x = 1096
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5*X + 3*X = 1096
=> (5+3)*X = 1096
=> 8X = 1096
=>X = 1096 : 8 = 137
5 x X + 3 x X =1096
<=> X x ( 5 + 3 ) = 1096
<=> X x 8 = 1096
=> X = 1096 : 8
X = 137
5*x+3*x=1096
=> x*(5+3) = 1096
=> x * 8 = 1096
=> x = 1096 : 8
=> x = 137
a) 5 × x + 3 × x =1096
x × ( 5 + 3 ) = 1096
x × 8 = 1096
x = 1096 :8
x = 137
b) 189 : x - 37 : x=8
( 189 - 37 ) : x = 8
152 : x = 8
x = 152 : 8
x = 19
ủng hộ nha
a , 5 X x + 3 X x = x X ( 5+3 ) = x X 8 = 1096
=> x = 1096 : 8 = 137.
b , 189 : x - 37 : x = ( 189-37 ) : x = 152 : x = 8
=> x = 152 : 8 = 19.
a. 5 x x + 3 x x = 1096
=> (5+3) x x = 1096
=> 8 x x = 1096
=> x =1096:8
=> x = 137
b. 115:x+37:x=8
=> (115+37):x=8
=> 152:x = 8
=> x = 152:8
=> x = 19
a)5 x X + 3 x X = 1096
X x (5+3) = 1096
X x 8 = 1096
X = 1096 : 8
X = 137
b) 115 : x + 37 : X = 8
( 115 + 37 ) : X = 8
152 : X = 8
X = 152 : 8
X = 19
\(\dfrac{x+8}{1092}+\dfrac{x+10}{1094}=\dfrac{x+12}{1096}+\dfrac{x+14}{1098}\)
\(\Leftrightarrow\left(\dfrac{x+8}{1092}-1\right)+\left(\dfrac{x+10}{1094}-1\right)\)\(=\left(\dfrac{x+12}{1096}-1\right)+\left(\dfrac{x+14}{1098}-1\right)\)
\(\Leftrightarrow\dfrac{x-1084}{1092}+\dfrac{x-1084}{1094}=\dfrac{x-1084}{1096}+\dfrac{x-1084}{1098}\)
\(\Leftrightarrow\dfrac{x-1084}{1092}+\dfrac{x-1084}{1094}-\dfrac{x-1084}{1096}-\dfrac{x-1084}{1098}=0\)
\(\Leftrightarrow\left(x-1084\right).\left(\dfrac{1}{1092}+\dfrac{1}{1094}-\dfrac{1}{1096}-\dfrac{1}{1098}\right)=0\)
\(\Rightarrow x-1084=0\Rightarrow x=1084\)
Vậy x=1084
a) ( 15 x 13 - 21 ) : 2 +108
=(195-21):2+108
=174:2+108
=195
b) (548x13+1096)x43:15:86
=(7124+1096)x43:15:86
=8220x43:15:86
=353460:15:86
=274
(5+3)*x=1096
8*x=1096
x=1096:8
x=137
**** mih nhe
137 t mình nhé