Question

n (x + 450) - 3 540 = 4 000:80​

Answer 1

Ответ:

N (x + 450) - 3 540 = 4 000:80

((n • (x + 450)) - 3540) - 50 = 0

nx + 450n - 3590 = 0

nx+450n-3590 = 0

Answer 2

(x+450)-3590=4000:80

x-3590=50

x=3590-450

x=3140

___________________

(3140+450)-3590=4000:80

50=50