Mathematics, 09.11.2019 23:31, kukisbae

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? !

a) true
b) false
c) open

Answers: 3

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

a)true
b)false