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OpenStudy (anonymous):
The Subtraction Property of Equality lets you say that if 5x + 6 = 21, then ... = 15, so the question is, What Equals 15?
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OpenStudy (anonymous):
So if 5x+6=21 then 5x has to be = to 15 Do you understand why? It's the first step to isolate the variable in that equation.
OpenStudy (anonymous):
ohhh thanks you so much
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