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OpenStudy (anonymous):
I need to solve equations while writing reasons for each step. Here is one i need help with: -9x - 21 = -20x - 87 Any Help???
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OpenStudy (across):
Okay! First, let's begin by grouping "like" terms. Do you know what this means?
OpenStudy (anonymous):
ok
OpenStudy (across):
|dw:1324416970816:dw|
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