Question

Will fan and medal!

Which statement is true for the equation
3x - 3x - 2 = -2?

It has no solution.

It has one solution.

It has two solutions.

It has infinitely many solutions.

Answer 1

@iGreen

Answer 2

3x - 3x - 2 = -2

Add 2 to both sides, -2 + 2 = ?

Answer 3

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Answer 4

0

Answer 5

Yes, so we have 3x - 3x = 0

What's 3x - 3x?

Answer 6

x

Answer 7

No, check again.

Answer 8

Anything subtracted by itself equals what?

Answer 9

0x @iGreen

Answer 10

@iGreen

Answer 11

It's just 0.

That gives us:

0 = 0

So it has infinitely many solutions