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Dana
 Post subject: Math Essentials Pg 86, #1
PostPosted: Sun Mar 13, 2011 10:15 pm 
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Joined: Thu Feb 24, 2011 4:01 pm
Posts: 6
I am curious about this question:
4(3x+2y-18)+16x-3y+14=

I keep getting:
12x+8y-76+16x-3y+14=
(12x+16x)+(8y-3y)+(-76+14)=
28x+5y-62

But the answer is:
28x+5y-58??

How am I getting the wrong number? I'm hoping this is a misprint. Help!

It also looks like further down on this page it says to "Solve for x," but you actually end up solving for "y" on #7. These instructions should probably be updated. :)
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VP_Help
 Post subject: Re: Math Essentials Pg 86, #1
PostPosted: Mon Mar 14, 2011 4:57 pm 
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Joined: Thu Feb 12, 2009 6:32 pm
Posts: 497
4(3x+2y-18)+16x-3y+14=

12x + 8y - 72 + 16x - 3y + 14 =

28x + 5y - 58 = .... it is -58 because -72 + 14 = - 58


-- Veritas Help
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Dana
 Post subject: Re: Math Essentials Pg 86, #1
PostPosted: Mon Mar 14, 2011 7:51 pm 
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Joined: Thu Feb 24, 2011 4:01 pm
Posts: 6
Awwww....-18*4=-72...THANK YOU!

Brain cramp! HAHA!
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