0
Anonymous
-8 plus 15 = 7
Wiki User
8 plus 15 = 23
x = -7
M=15
It is the property that equals plus equals are equals.
5 + -8 = 3 + 12 -3 is not equal to 15
-8
1over3x+x+x+8+x=15
(-15) + 23 = 8
8+7 = 15
no 15
n = 8
yes
-1
X=7