The 'answer' is the number that 'x' must be in order to make the statement true. If 'x' is anything different from -7, then the statement "x = -7" is not true. So the 'answer' must be -7 .
direct
Must Be Proved Before They Can Be Accepted As True
Direct
direct
A+
not b not a its contrapositive
if a is true, then b must be true
No, it must not be true.
Every statement apart from the axioms or postulates.
The 'answer' is the number that 'x' must be in order to make the statement true. If 'x' is anything different from -7, then the statement "x = -7" is not true. So the 'answer' must be -7 .
No
direct
Must Be Proved Before They Can Be Accepted As True
If x y and y z, which statement is true
No
Theorem