Solution dosn't seem right.

SCSmith

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Joined
Oct 25, 2005
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29
1/6(m - 4) = 2/3(m + 1) - 1/2m
(6/1)(1/6)(6m -24) = (6/1)(2/3)(6m + 6) - (6/1)(1/2m)
6m - 24 = (4)(6m + 6) - 3m
6m - 24 + 24m + 24 - 3m
6m - 24 = 21m + 24
15m = -48
m = -48/15
 
1/6(m - 4) = 2/3(m + 1) - (1/2)m [equ 1]

(6/1)(1/6)(6m -24) = (6/1)(2/3)(6m + 6) - (6/1)((1/2)m)

If you want to multiply [equ 1] by 6, term by term from left to right:

1/6(m - 4) * 6 = m - 4
... you got (6/1)(1/6)(6m -24) = 6m - 24

2/3(m + 1) * 6 = 4(m+1)
... you got (6/1)(2/3)(6m + 6) = 4(6m+6)

- 1/2m * 6 = -6((1/2)m)
... you got this fine!
 
for your 3rd line it should be like this...
m-4 = (4)(m + 1) - 3m

the 6/1 . 1/6 cancels out to be 1 which has not impact.

and the (6/1)(2/3)(6m + 6) should be (6/1)(2/3) (m+1)
which gives 4(m+1)
 
Your equation:
1/6(m - 4) = 2/3(m + 1) - 1/2m

Step1: REWRITE!
(m - 4) / 6 = 2(m + 1) / 3 - m / 2

Step2: now it's quite clear LCD=6; so multiply by 6:
m - 4 = 4(m + 1) - 3m

Step3: finish off:
m - 4 = 4m + 4 - 3m
m - 4 = m + 4
....hmmm: what ya gonna do with that :evil:
 
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