Question

can someone check if i got this right?
determine if the equation is sometimes, always, or never true
14+3x-7=7x+7-4x

I got, 7+3x=3x+7
sometimes true?

Answer 1

this is obvious that it is a non-equation!!!

Answer 2

2=2
sometimes correct or may be not?

Answer 3

how did you get that??

Answer 4

It is a postulate, kookla

Answer 5

All numbers with all their kinds are available to be substituted in this equation. are not they?

Answer 6

could you show how you solved it please?

Answer 7

There are infinite number of solutions. Therefore always true.

Answer 8

For any equation, the aim of solving it is to determine or evaluate the magnitude - and direction in some cases - of the variable(s) in the equation.

The solution could become a single value (may be zero, where the zero is a value), multiple values, or may be infinite amount of values such that cases.

So don't be disturb when the solution appears to be all the available values you may know!

Answer 9

Ohhh I see! Thank you 3mar. The 0 was throwing me off

Answer 10

Such cases of equation we call them "postulates" or "axiom".

Answer 11

Let 3x + 7 = a

By the reflexive property of equality:

If a is a real number,

then a = a is always true.

Answer 12

Thank you skullpatrol :)

Answer 13

Thanks for trying to learn :-)

Answer 14

You are welcome, kookla.
sorry,, Mr or Mrs?

Answer 15

mrs :)

Answer 16

Just remember some equations have no solutions,

one solution, or many solutions.

Where a solution is a value of the variable that makes it a true statement.

Answer 17

skullpatrol is right, Mrs kookla and he concluded what I explained well.
Thanks, skullpatrol.