Question

Упростите выражения:
1) 5 - (a+3)
8-(10+b)
9-(с+7)

2) 2+(-8+с)
3+(-d-5)
4+(a-9)

3) 0,8 - (m+3)
1,4+ (n-2)
2,6- (-k+10)

Answer 1

$1) 5-(a+3)=5-a-3=2-a;$
$8-(10+b)=8-10-b=-2-b;$
$9-(c+7)=9-c-7=2-c;$

$2)2+(-8+c)=2-8+c=c-6;$
$3+(-d-5)=3-d-5=-2-d;$
$4+(a-9)=4+a-9=a-5;$

$3)0,8-(m+3)=0,8-m-3=-2,2-m;$
$1,4+(n-2)=1,4+n-2=n-0,6;$
$2,6-(-k+10)=2,6+k-10=12,6+k.$