Question

your friend thinks that the equation K-3.5=21 is a true statement. is your friend correct? explain
plz answer

Answer 1

plz people i really need it

Answer 2

a 'true' statement is a statement that is true for any number
for example

x = x is a true statement

Answer 3

K-3.5=21 is not a true statement if you plug in the wrong number for k , for example if i plug in k = 1

Answer 4

a true statement with a variable x is called an identity.

a statement that is true for some x but not all x is called a conditional equation.

a statement that is false for all x is called a contradiction.

2x = 3x + 1 , this is a contradiction

Answer 5

so what the answer

Answer 6

it is not a complete statement, so it can neither be true or false

Answer 7

The answer is your friend is wrong.

Answer 8

quantifiers, quantifiers, quantifiers

Answer 9

$$\Huge K-3.5=21$$ This is an open sentence, because it contains a variable.

Answer 10

If K=24.5 then it is a true statement, because 21=21 is a true statement.