Автор - Sgthhgfvv

Помогите пожалуйста решите :
(x+y=40
(y-x=8
Плиззз

Ответ

Автор - Nekit455

displaystylettleft { {{x+y=40} atop{y-x=8~}} right.left { {{y=40-x} atop {y-x=8~}} right. left { {{y=40-x~~~~~} atop {40-x-x=8}} right.

40 - x - x = 8

40 - 2x = 8

2x = 40 - 8

2x = 32

x = 32/2

x = 16

displaystylettleft { {{x+y=40} atop {x=16~~~~~}} right.left { {{16+y=40} atop {x=16~~~~~~}} right.

16 + y = 40

y = 40 - 16

y = 24

displaystylettleft { {{x=16} atop {y=24}} right.

Ответ: 16; 24.

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