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Toán Lớp 8: x+5/2016 + x+4/2017 = x+3/2018 + x+2/2019

Home/ Toán Lớp 8: x+5/2016 + x+4/2017 = x+3/2018 + x+2/2019

Toán Lớp 8: x+5/2016 + x+4/2017 = x+3/2018 + x+2/2019

Băng Tháng Mười 11, 2022 Toán học 1 Comment 0 views

Toán Lớp 8: x+5/2016 + x+4/2017 = x+3/2018 + x+2/2019

Comments ( 1 )

thucquyenlan
11 Tháng Mười, 2022 at 7:28 chiều

Reply

$\\$

(x+5)/2016 + (x+4)/2017 = (x+3)/2018 + (x+2)/2019

->(x+5)/2016 + 2016/2016 + (x+4)/2017 + 2017/2017 = (x+3)/2018+2018/2018 + (x+2)/2019+2019/2019

-> (x+2021)/2016 + (x+2021)/2017 = (x+2021)/2018 + (x+2021)/2019

-> (x+2021)/2016 + (x+2021)/2017 – (x+2021)/2018 – (x+2021)/2019=0

->(x+2021)(1/2016 +1/2017 – 1/2018 – 1/2019)=0

Do 1/2016 + 1/2017 – 1/2018 – 1/2019\ne 0

->x+2021=0

->x=-2021

Vậy x=-2021

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