2x+29/3 = x+44/8 +2 dont know how to do these ones?

2009-10-25 8:03 am
更新1:

its wrong the answear in the back of the book is minus 4 not minus 2.16

回答 (10)

2009-10-25 9:39 am
✔ 最佳答案
(2x + 29)/3 = (x + 44)/8 + 2
2x + 29 = 3[(x + 44)/8 + 2]
2x + 29 = [3(x + 44)]/8 + 3(2)
2x + 29 = [3(x) + 3(44)]/8 + 6
2x + 29 = (3x + 132)/8 + 6
8(2x + 29) = 8[(3x + 132)/8 + 6]
16x + 232 = 3x + 132 + 48
16x + 232 = 3x + 180
16x - 3x = -232 + 180
13x = -52
x = -52/13
x = -4
2009-10-25 4:32 pm
2x + 29/3 = x + 44/8 + 2
x = - 29/3 + 44/8 + 2
x = - 232/24 + 132/24 + 2
x = - 100/24 + 2
x = - 25/6 + 2
x = - 25/3 or - 8 1/3 or - 8.333.
2009-10-25 9:26 am
x=44/8+2-29/3
24x=132+48-232
24x=-52
x=-13/6
2009-10-25 8:35 am
Will hazard a guess and say that question is incorrectly presented and SHOULD be :-

( 2x + 29 ) / 3 = ( x + 44 ) / 8 + 2

16 x + 232 = 3 x + 132 + 48

13 x = - 52

x = - 4

PS
Brackets MUST be used when presenting questions.
2009-10-25 8:32 am
2x+29/3 = x+44/8 + 2

2x+29/3 = x+44+16/8

2x+29/3 = x+60/8

8(2x+29)= 3(x+60)

16x+232=3x+180

13x = -52

x= -4
2009-10-25 8:19 am
look u have not said clearly wat things u know and wat u dont . so i will be solving it simply.

first do the simple addition on both sides.

2x+29/3 = x+ 44/8 +2.
(6x+29)/3 = x+ (44 + 16)/8
(6x+29)/3 = x+60/8
(6x+29)/3 = (8x+60)/8
8(6x+29) = 3(8x+60)
48x + 232 = 24x + 180.
24x = -52
x = -52/24
x = -13/6
2009-10-25 8:12 am
2x + 29/3 = x + 44/8 +2
2x - x = 44/8 +2 - 29/3
x = -(52/24)
2009-10-25 8:12 am
2x + 29/3 = x + 44/8 +2
Simply collect x on left side and numbers on right side,
you get 2x - x = 11/2 + 2 -29/3
So x = (33+12 - 58)/6 by taking lcm 6
x = -- 13/6
2009-10-25 8:11 am
-2.16
2009-10-25 8:10 am
collect like terms:

(2x - x) = 44/8 + 2 - 29/3
x = 44/8 + 2 - 29/3

find a common denominator and add/subtract the constants

x = 44(3)/24 + 2(24)/24 - 29(8)/24
x = (3*44 + 2*24 - 8*29)/24
you do the arithmetic.


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