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Elena Hoffman
Mathematics
16 February, 21:35
Add 2x + 3y + 7 and 2x - y - z
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Vaughn Mcgee
16 February, 21:44
0
4x+y-z+7
Step-by-step explanation:
use parentheses to separate the 2 parts of the equations
(2x+2y+7) + (2x-y-z)
then combine like terms (terms with the same variables)
note that z and 7 are the only two terms without any like terms, so they stay the same.
4x+y-z+7
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