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OpenStudy (anonymous):
3(-5x-7)-(6x)
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OpenStudy (bibby):
Distribute the 3 first and then subtract the like terms First step: what is 3(-5x-7)?
OpenStudy (anonymous):
-15x-21?
OpenStudy (bibby):
yep. What is (-15x-21)-6x?
OpenStudy (anonymous):
-21x-21?
OpenStudy (bibby):
exactly. you could have rewritten it as -15x-6x-21 if you were unsure Also you can factor out the final expression if you'd like. 21(-x-1) -21(x+1)
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OpenStudy (anonymous):
what is the answer?
OpenStudy (bibby):
-21x-21?
OpenStudy (anonymous):
oh i got it.thank you :D
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