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Edited by Hawk:
7/11/2013 12:59:41 AM
6
Math Helps
Ok, so my Geometry teacher gave us this summer packet to basically brush us up on algebera before going into Algebra II next year. I'm doing good so far, except I've stumbled upon a word problem. These kind of problems always confused me :/ Could you guys help?
The problem is: The sum of 4 times a number and 5 is -7. Find the number.
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6 RepliesEdited by Hylebos: 7/11/2013 1:27:27 AM4x + 5 = -7 4x + 5 - 5 = -7 - 5 4x = -13 4x/4 = -13/4 x = -13/4 Edit: DERP DERP DERP DERP. The point is the answer is -3.
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4X + 5 = -7 -7 - 5 = 4X -12 = 4X -12/4 = X X = -3
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4 RepliesEdited by JAMES Z666: 7/11/2013 1:24:11 AMLOL doing work during the summer holidays. Who does that? I essentially work hard for 9 months and then I get 3 months off :) 4*5x=-7 20x=-7 x=-7/20 Oh [I]add[/I] 5! You stupid bastard you said [I]a[u]n[/u]d[/I] 5! D: Erm, well let me see now... 4x+5=-7 4x=-7-5 4x=-12 x=-12/4 x=-3 :)
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2 Replies4x+5=-7 4x=-12 x=-3
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1 ReplyEdited by Funky Bob: 7/11/2013 1:01:32 AM[quote]The sum of 4 times a number and 5 is -7[/quote] 4x + 5 = -7 4x = -12 x = -3 (barring any embarrassing errors on my part)
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5 Replies
