Question

271решите уравнение 11,12.

Answer 1

$987 - (x + 364) = 519 \\ 987 - x - 364 = 519 \\ - x = 519 - 987 + 364 \\ - x = - 104 \\ x = 104$
Ответ: х = 104
$3128 - (m + 425) = 1509 \\ 3128 - m - 425 = 1509 \\ - m = 1509 - 3128 + 425 \\ - m = - 1194 \\ m = 1194$
Ответ: m = 1194

Answer 2

11)

987-(x+364)=519

987-x-364=519

-x=-104

x=104

12)

3128-(m+425)=1509

3128-m-425=1509

-m=-1194

m=1194