Question

Jubal wrote the four equations below. He examined them, without solving them, to determine which equation has no solution.

Answer 1

Answer:

3x+2=3x-2

Step-by-step explanation:

The second equation has no solution, because is not true

so

3x+2=3x-2 ------> is not true

therefore

The equation has no solutions

Answer 2

Answer:

$3x+2=3x-2$

Step-by-step explanation:

When an equation has no solution there's no true value for x. What we have is a Contradiction, a false answer.

1)The first and the last equation has a true solution in the form:

$0x=0$

True

2)The third one has a solution:

$x=7$

True

3) The second one

$3x+2=3x-2\\0x=-4$

FALSE

A Contradiction. Then, this one has no solution.