The value of x is -3 and the property used in this is (-) / (-) = (+)
According to the question the expression that we have given is
6 - 4x = 18
We will solve this equation step by step that is
First we will subtract 6 both sides of the equation,
6 - 6 - 4x = 18 - 6
-4x = 12
Now we will divide -4 on both side of the equation we get
-4x/-4 = 12/-4 [As (-) / (-) = (+) ]
x = -3
Hence the value of x is -3 and the property that we have used is that
(-) / (-) = (+)
Learn more about expression here : https://brainly.com/question/723406
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