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OpenStudy (anonymous):
simplify. 3(2x + 4y - 2z) + 7(x + y - 4z) A) 13x + 5y - 22z B) -x - 19y + 22z C) 13x + 19y - 34z D) -x - 5y + 34z
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OpenStudy (anonymous):
You want to multiply 3 in the first bracket and 7 in the second bracket. If you do that, then you get: \[6x+12y-6z+7x+7y-28z\] From here then you should be able to simplify it yourself?
OpenStudy (phebe):
13 x+19 y-34 z
OpenStudy (anonymous):
thx @Phebe
OpenStudy (phebe):
WELCOME! :D TO OPENSTUDY
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