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Mathematics 18 Online
OpenStudy (anonymous):

Simplify: 7(3x+5y) + 5(2x+7y)

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?

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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