" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(a+b)-(-c)
= (-15+8)-(-(-7))
= (-15+8)-(+7)
= (-15+8)-7
= 7-7 = 0
7.)
10+(-5) = -12+n
10-5 = -12+n
5 = -12+n
5+12 = n
n = 17
8.)
-3-81÷(-3)+17
= -3(-81÷(-3))+17
= -3+27+17
= 24+17 = 41
9.)
-33+x = -28
x = -28+33
x = 5
bilangan kedua = 5
10.)
11°+15° = 26°
11.)
18-(-12) = 18+12 = 30°