x-2020/12+x-2020/20+x-2020/30+x-2020/42+x-2020/72= 16/9

Question

x-2020/12+x-2020/20+x-2020/30+x-2020/42+x-2020/72= 16/9

in progress 0
Peyton 14 phút 2021-09-07T12:43:11+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-09-07T12:44:20+00:00

    *Lời giải :

    `x – 2020/12 + x – 2020/20 + x – 2020/30 + x  – 2020/42 + x – 2020/72 = 16/9`

    `-> (x + x + x + x + x) + (-2020/12 – 2020/20 – 2020/30 – 2020/42 – 2020/72) = 16/9`

    `-> 5x + = 16/9 – 2020/12 + 2020/20 + 2020/30 + 2020/42 + 2020/72`

    `-> x = (16/9 – 2020/12 + 2020/20 + 2020/30 + 2020/42 + 2020/72)/5`

     

Leave an answer

Browse

35:5x4+1-9:3 = ? ( )