tìm x biết \(697:\frac{15.x+364}{x}=17\)
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tìm x thuộc N biết ; 697:\(\frac{15.x+364}{x}\)=17
Tìm x biết :
697 : \(\frac{15.x+364}{x}\)=17
\(697:\frac{15x+364}{x}=17\)
=> \(\frac{15x+364}{x}=697:17\)
=> \(\frac{15x+364}{x}=41\)
=> 15x+364=41x
=> 15x-41x+364=0
=> -26x+364=0
=> -26x=-364
=> x=-364:(-26)
=> x=14
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tìm x
\(697:\frac{15.x+364}{X}=17\)
Tìm x biết: 697 : \(\frac{15\times a+364}{a}\) = 17
<=> \(\frac{15a+364}{a}=41\Leftrightarrow15a+364=41a\Leftrightarrow26a=364\Rightarrow a=14\)
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Tìm x:
697:\(\frac{15.x+364}{x}\)=17
\(=>\frac{15.x+364}{x}=697:17\)
\(=>\frac{15.x}{x}+\frac{364}{x}=41\)
\(=>15+\frac{364}{x}=41\)
\(=>\frac{364}{x}=41-15\)
\(=>\frac{364}{x}=26\)
\(=>x=364:26\)
\(=>x=14\)
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\(\Rightarrow\frac{15.x+364}{x}=697:17\)
\(\Rightarrow\frac{15.x+364}{x}=41\)
\(\Rightarrow15.x+364=41.x\)
\(\Rightarrow364=26.x\)
\(\Rightarrow x=14\)
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Tìm x, biêt :697 ÷ [(15× x +364 )÷x]= 17
tìm x:
\(697:\frac{15.x+364}{x}=17\)
\(92.4-27=\frac{x+350}{x}+315\)
tìm x:
\(697:\frac{15.x+364}{x}=17\)
\(92.4-27=\frac{x+350}{x}+315\)
\(697:\frac{15x+364}{x}=17\)
\(\frac{15x+364}{x}=697:17=41\)
\(\frac{15x}{x}+\frac{364}{x}=41\)
\(15+\frac{364}{x}=41\)
\(\frac{364}{x}=41-15=26\)
\(x=364:26=14\)
\(92.4-27=\frac{x+350}{x}+315\)
\(\frac{x+350}{x}+315=341\)
\(\frac{x+350}{x}=341-315=26\)
\(\frac{x}{x}+\frac{350}{x}=26\)
\(1+\frac{350}{x}=26\)
\(\frac{350}{x}=26-1=25\)
\(x=350:25=14\)
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Tìm x,biết:
a)x . (2013 + 2014 + 2015) = 0
b) x . 125 = 10000
c)697 : [(15 . x + 364) : x] = 17
Trả lời:
a, x . ( 2013 + 2014 + 2015 ) = 0
=> x = 0 : ( 2013 + 2014 + 2015 )
=> x = 0
Vậy x = 0
b, x . 125 = 10000
=> x = 10000 : 125
=> x = 80
Vậy x = 80
c, 697 : [ ( 15 . x + 364 ) : x ] = 17
=> ( 15 . x + 364 ) : x = 697 : 17
=> ( 15 . x + 364 ) : x = 41
=> 15 . x + 364 = 41 . x
=> 41 . x - 15 . x = 364
=> ( 41 - 15 ) . x = 364
=> 26 . x = 364
=> x = 364 : 26
=> x = 14
Vậy x = 14