Read the following statement: x + 6 = 6 + x. this statement demonstrates:

the substitution property.
the reflexive property.
the symmetric property.
the transitive property.

18a

step-by-step explanation:

simply because it is. it's the highest common factor

25

step-by-step explanation:

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

addition

step-by-step explanation: