Question

1. Is -7+9=-9+7 true, false or open?
2.Is 4x-3=19 true,false,or open?

Answer 1

ok, so what is the sum of -7 + 9

Answer 2

2

Answer 3

ok, and \(-9+7\)?

Answer 4

-2

Answer 5

yeah, so they are NOT equal right?

Answer 6

go with "false"

Answer 7

as for the second, it could be true or not depending on \(x\)
i think the term of art for that is "open"

Answer 8

so 2 is open ?

Answer 9

@satellite73

Answer 10

yes, it would seem to be open since x can take a value in order for that equation to be true