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Mathematics 9 Online
OpenStudy (anonymous):

if t+6=21, find value of -2t

OpenStudy (oaktree):

Are you familiar with inverse operations? And would you like me to just give you the answer or teach you?

OpenStudy (anonymous):

teach

OpenStudy (oaktree):

Okay. So according to inverse operations, what we want to do is isolate the variable. The variable is t, in this case. What is being done to t in the equation?

OpenStudy (oaktree):

As in, is anything being added, subtracted, multiplied, or divided to it?

OpenStudy (anonymous):

ok

OpenStudy (oaktree):

What's the answer?

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