Question

Упростите выражения
$3 times x times 9 times 5$
$m times 15 times 12$
$38a + 45a$
$81p - 16p$
$n + 85n - 18n$
$29y - 11y - y$
Помогите прошу!!!

Answer 1

$3 times x times 9 times 5=(3times9times5)x = 135x \ \ m times 15 times 12=(15times12)m = 180m\ \ 38a + 45a=(38+45)a=83a \ \ 81p - 16p=(81-16)p=65p \ \ n + 85n - 18n=(1+85-18)n= 68n\ \ 29y - 11y - y=(29-11-1)y=17y$