Question

tìm số nguyên x biết \(\dfrac{10+x}{17+x}=\dfrac{3}{4}\)

Answer 1

Tham khảo

10+x/17+x=3/4

=>(10+x).4=(17+x).3

=>40+4x=51+3x

=>4x-3x=51-40

=>x=11

Vậy x=11

Answer 2

\(\dfrac{10+x}{17+x}=\dfrac{3}{4}\); \(ĐK:x\ne-17\)

\(\Leftrightarrow4\left(10+x\right)=3\left(17+x\right)\)

\(\Leftrightarrow40+4x=51+3x\)

\(\Leftrightarrow4x-3x=51-40\)

\(\Leftrightarrow x=11\)

Answer 3

\(\dfrac{10+x}{17+x}=\dfrac{3}{4}\Rightarrow4,\left(10+x\right)=3.\left(17+x\right)\Rightarrow40+4x=51+3x\)

\(\Rightarrow4x-3x=51-40\Rightarrow x=9\)

Answer 4

tham khảo

10+x/17+x=3/4

=>(10+x).4=(17+x).3

=>40+4x=51+3x

=>4x-3x=51-40

=>x=11

vậy:x=11 thỏa mãn đề bài

Answer 5

`10+x/17+x=3/4`

`=>(10+x).4=(17+x).3`

`=>40+4x=51+3x`

`=>4x-3x=51-40`

`=>x=11`

Answer 6

Tham khảo

10+x/17+x=3/4

=>(10+x).4=(17+x).3

=>40+4x=51+3x

=>4x-3x=51-40

=>x=11

Vậy x=11

Answer 7

10 + x/17 + x = 3/4

4 ( 10 + x ) = 3 ( 17 + x )

40 + 4x = 3 ( 17 + x )

40 + 4x = 3x + 51

40 + 4x - 3x = 51

40 + x = 51

x = 51 - 40

x = 11.

Answer 8

x = 11

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