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OpenStudy (anonymous):
Simplify: 7(3x+5y) + 5(2x+7y)
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OpenStudy (anonymous):
\[7(3x+5y)\] \[21x + 35y\] ----------------------------- \[5(2x+7y)\] \[10x + 35y\]
OpenStudy (anonymous):
Therefore: \[21x + 35y + 10x + 35y\]
OpenStudy (anonymous):
combine like terms.
OpenStudy (anonymous):
31y
OpenStudy (anonymous):
what o: what happened to the rest? you only gave me 31y?
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OpenStudy (anonymous):
its not even correct. 21x + 10x = 31x 35y + 35y = 70y 31x + 70y
OpenStudy (anonymous):
do you understand now? @elenabrooke ?
OpenStudy (anonymous):
Yes :) thanks
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