which of the following is an example of an open equation? 1)5x+7=12// 2)12+(-8)=4// 3)25=5(5)//4)8+0=8

Answer 1

the value of x determines the truth of equation 1. Open Sentence: an equation or inequality containing one or more variables in which its truth or falsehood depends upon the values assumed by the variables in a particular instance, as the equation x + 3 = 8.