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Mathematics 21 Online
OpenStudy (anonymous):

im asking again because on my phone it does not let me comment how to simplify -2 (9d - 4) +7

OpenStudy (anonymous):

-2 (9d - 4) +7 -18d + 8 + 7 - 18d + 15

OpenStudy (anonymous):

so -18d+15 is my answer???? gerry

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