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Nasik411
ok can someone do these for me
simplify equations plz
dont solve

5(y-b)+3b-6y(6+5)

Checking work: Substitute 1 for y and 2/3 for b.



(12-3+5k)6+4k-2k(k+5)

Checking Work Substitute 0.5 for k


3(4+5s)-12+(-3s)

checking work: substitute 1/3 for s

i couldnt do it so i thought u guys could help, i check website and SRB

heh.gif heh.gif
Cmafai
QUOTE(Nasik411 @ May 8 2007, 01:32 AM) *

5(y-b)+3b-6y(6+5)


I dunno what you mean, but I'll walk you through the first one (Just simplifying it). I'm not gonna just do the work for you though.

CODE


1) 5(y-b)+3b-6y(6+5)

2) 5y-5b+3b-6y(6+5) [Distributed through the first parentheses]

3) 5y-5b+3b-36y-30y [Distributed again]

4) -2b-61y [Combined like terms]

Simplified: -2b-61y


Now I'm terrified I messed up somewhere i meant.gif
Sir Cordery
QUOTE(cmafai @ May 8 2007, 02:43 AM) *

Now I'm terrified I messed up somewhere i meant.gif

Even though you could do 6+5 at the beginning to make it a bit easier, you still got the right simplification.

Nasik, hopefully cmafai's work will help you do the others by yourself (it's amazing how much better you get at it if you try it yourself, even if you get it wrong to start with). Of course, if you get stuck again, I'm sure someone can help smile.gif
MPX
moved to Homework, Tasks, and Work Help
Lordultimax
5(y-b)+3b-6y(6+5)

5(1-2/3)+3(2/3)-6(1)(6+5)
5(1/3)+(2)-6(11)
5/3+2-66
5/3-64
1 and 2/3 minus 64
negative 62 and 1/3

I think i screwed this one up. if i did then the answer is negative 63 and 2/3

Checking work: Substitute 1 for y and 2/3 for b.



(12-3+5k)6+4k-2k(k+5)
[12-3+5(.5)]6+4(.5)-2(0.5)(.5+5)
[11.5]6+(2)-2(0.5)(5.5)
69+(2)-2(2.75)
71-5.5
65.5

Checking Work Substitute 0.5 for k


3(4+5s)-12+(-3s)

3[4+5(1/3)]-12+[-3(1/3)]
3[4+5/3]-12+[-1]
[12+15/3]-12-1
[12+5]-13
[17]-13
4

checking work: substitute 1/3 for s
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