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Mathematics 16 Online
OpenStudy (anonymous):

Simplify 7x - 4 - (2x + 1). A. 5x - 3 B. 5x - 5 C. 9x - 5 D. 9x - 3

OpenStudy (anonymous):

You just have to combine like terms. 7x - 2x = 5x and -4 + 1 = -3 so your answer is 5x- 3

OpenStudy (goldphenoix):

Nope. You did it wrong.

OpenStudy (anonymous):

Oh yeah. It's 5x - 5 sorry :/

OpenStudy (goldphenoix):

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OpenStudy (goldphenoix):

If you are subtracting a parenthesis, just remember that there's an invisible 1 next to the parenthesis. :)

OpenStudy (anonymous):

yeah… thats embarrassing :/

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