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Mathematics 7 Online
OpenStudy (anonymous):

Which expression shows the first step in simplifying 2x – 3(x + 2y) – 5(y – 7x)? A2X-8(X+2Y)+(Y-7X) B2X-3-5(3Y-6X) C2X-3X-6Y-5Y+35X D2X+3X+6Y+5Y-35X

OpenStudy (triciaal):

rewrite and get rid of parenthesis

OpenStudy (triciaal):

do you see C ?

OpenStudy (anonymous):

yes

OpenStudy (triciaal):

do you know what would be the next step?

OpenStudy (anonymous):

nope

OpenStudy (triciaal):

group like terms together x's together y's together numbers together etc to simplify each group of like items

OpenStudy (anonymous):

I think I have the answer D

OpenStudy (triciaal):

no the answer to the posted question is C it asked for the first step

OpenStudy (anonymous):

thanks

OpenStudy (triciaal):

sorry if you are not concerned/anxious about what would be next to simplify the original but it will come up later

OpenStudy (triciaal):

you are welcome

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