s9085319 s9085319

30-11-2020
Mathematics

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An expression is written as m−5(m+3) +7m.
What is the value of the expression when m=x+1?

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meowmeow223334 meowmeow223334

30-11-2020

(x+1)-5(x+1+3)
(x+1)-5(x+4)
x + 1 - 5x - 20
-4x - 19

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