Question

(1,1x+71,65)•2=451,3
Уравнение

Answer 1

(1,1х + 71,65) * 2 = 451,3

2,2х + 143,3 = 451,3

2,2х = 451,3 - 143,3

2,2х = 308

х = 308 : 2,2

х = 140

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Проверка:

(1,1 * 140 + 71,65) * 2 = 451,3

(154 + 71,65) * 2 = 451,3

255,65 * 2 = 451,3

451,3 = 451,3

Answer 2

(1,1x+71,65)•2=451,3

2,2x+143,3=451,3

2,2x+143,3-143,3=451,3-143,3

2,2x=451,3-143,3

2,2x=308

2,2x/2,2=308/2,2

x=308/2,2

x=140