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jkdcvdsvbdvb
@jkdcvdsvbdvb
June 2022
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помогите пожалуйста!!!!!!!!!!!!!!!
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shatojulia
(2х-13)/(2х+5)+(3х+9)/(3х-1)=2
(2х-13)•(3х-1)+(3х+9)•(2х+5)=2•(2х+5)•(3х-1)
6х^2-2х-39х+13+6х^2+15х+18х+45=2•(6х^2-2х+15х-5)
12х^2-8х+58=12х^2+26х-10
34х=68
х=2
Проверка:
(2•2-13)/(2•2+5)+(3•2+9)/(3•2-1)=2
-1+3=2
2=2
Ответ:х=2.
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Answers & Comments
(2х-13)•(3х-1)+(3х+9)•(2х+5)=2•(2х+5)•(3х-1)
6х^2-2х-39х+13+6х^2+15х+18х+45=2•(6х^2-2х+15х-5)
12х^2-8х+58=12х^2+26х-10
34х=68
х=2
Проверка:
(2•2-13)/(2•2+5)+(3•2+9)/(3•2-1)=2
-1+3=2
2=2
Ответ:х=2.