Cupcakejam Cupcakejam

10-10-2016
Mathematics

contestada

Is -7+9=-9+7 true, false, or open? I forgot how to do this. :(

A)true
B)false
C)open

Is 4x-3=19 true, false, or open? Please help! ._.

A) true
B) false
C) open

Respuesta :

texaschic101 texaschic101

10-10-2016

-7 + 9 = -9 + 7
2 = -2 .......FALSE

4x - 3 = 19 .....if it has a variable in it, it is OPEN

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