Question

Подчеркни в каждом столбце уравнения , которые имеют одинакоговые корни. в) 810:y=50+40 (900-90):y=90 9•90+y=100-10 (800+10) +y=810+9 г) (328+432)•9+y=7000 y+750•9=7000 328•9+432•9+y=7000 9•(318+437)+y=7000

Answer 1

В)810÷y=50+40 (y=9)
(900-90)÷y=90 (y=9)
(800+10)+y=810+9 (y=9)
г)(328+432)×9+y=7000 (y=160)
328×9+432×9+y=7000 (y=160)

Answer 2

a) 810:y = 50 + 40 This equation does not have the same roots as any of the other equations.

b) (900-90):y = 90 + 9•90 This equation does not have the same roots as any of the other equations.

c) y = 100 - 10 + (800+10) This equation does not have the same roots as any of the other equations.

d) y = 810 + 9 This equation does not have the same roots as any of the other equations.

e) (328+432)•9 + y = 7000 This equation has the same roots as equation g.

f) y + 750•9 = 7000 This equation does not have the same roots as any of the other equations.

g) y = 7000 + 328•9 + 432•9 This equation has the same roots as equation e.

h) y = 7000 + 9•(318+437) This equation does not have the same roots as any of the other equations.