Question

[Hải Linh Phan]

tìm x thuộc Q thỏa mãn

\(\frac{x-10}{30}+\frac{x-14}{43}+\frac{x-5}{95}+\frac{x-148}{8}\)=0

Answer 1

[trần thu phương]

ta co(  x-10 / 30 )   -3  + ( x -14  / 43  ) -2  + ( x-5 / 95 ) -1 + ( x- 148  / 8) + 6 =0

=> (x- 10 -90 / 30  ) + ( x- 14-86  / 43 ) + ( x- 5- 95   /  95)  + ( x- 148 +48 ) =0

=> x-100 /30  +  x-100 / 43  + x- 100 / 95 +   x- 100 /  8 = 0

=> x-100 .( 1/30 + 1/43 +1/ 95 +1/ 8) =0

ma  1/30 + 1/43 + 1/ 95 + 1/8 khac 0 => x-100 =0 => x=100

Answer 2

[boy cô đơn]

h cho minh truoc da