Question

Using complete sentences, write an indirect proof proving that if x = 30, then x + 5 ≠ 20.

I'm stuck, Last question of my test.

Answer 1

first step is to define the given hypothesis to make yo understand the question

if x=30, then 34x+5≠20
so you have
Q:- x=30
P:- 34x+5≠20
and wanna prove if Q then P (Q →P)

Answer 2

now there is two type of proving:-
type1 : direct proof
type 2 : indirect prove like (contrapositive and contradiction )

Answer 3

ok , seems u got the point now what proof you wanna me to continue with you contradiction or contrapositive ?