8.5 solve the equation using by using the appropiate property

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1)  8+ 4b=2 + 2b     2) 7 - 5T= 3T - 2   3) 4 - 3d= 5d - 4    4) 12p= 3p + 21   5)  - Z - 2= - 2z  

6 ) 4 + 2a - 7= 3a + a + 3     7)  - 8w + 8 + 3w= 2 - 6w + 2      8) 6y  + 2y - 2= 14 + 3y - 12

Oct 15th, 2014

1)  8+ 4b=2 + 2b    

4b-2b= 2-8

2b= -6

b= -6/2

b=-3 

2) 7 - 5T= 3T - 2   

-5T-3T=-2-7

-8T= -9

T= -9/-8

T= 9/8

3) 4 - 3d= 5d - 4  

-3d-5d= -4-4

-8d= -8

d= -8/-8

d= 1

  4) 12p= 3p + 21  

12p-3p= 21

9p= 21

p= 21/9

p=7/3

 5)  - Z - 2= - 2z  

-z+2z=2

Z=2

6 ) 4 + 2a - 7= 3a + a + 3  

2a-3a-a= 3-4+7

-2a= 6

a=6/-2

a=-3   

7)  - 8w + 8 + 3w= 2 - 6w + 2   

-8w+3w+6w=2+2-8

w= -4

   8) 6y  + 2y - 2= 14 + 3y - 12

6y+2y-3y= 14-12+2

5y=4

y=4/5


Oct 15th, 2014

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