Question

45×2×y=900 , 45×2+b=900 , a-45×2=900

Answer 1

$45 times 2 times y = 900 \ 90y = 900 \ y = 10$


$45 times 2 + b = 900 \ 90 + b = 900 \ b = 900 - 90 \ b = 810$


$a - 45 times 2 = 900 \ a - 90 = 900 \ a = 900 + 90 \ a = 990$

Answer 2

Ответ:

45×2×y=900

y = 900/(45*2) = 900/90 = 10

45×2+b=900

b = 900 - 45*2 = 900 - 90 = 810

a-45×2=900

a = 900 + 45*2 = 900 + 90 = 990