Berdolcharisseidn
Answered

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Solve. :) Property of Equality
1. -8+2=x-3
2. 5+x=1/2-1/3
3. 1/4+x=1/2-1/3
4. 1-1/2 +m=3/4+1/2
5. (2/3)x=4
6.(1/5)y--7
Thank you. x

Sagot :

Kein09idn
     1) -8+2 = x-3
Step One: Combine like terms.
   -8+2 = x-3
     -6   = x-3

Step Two: Transpose -3 to the left side. (Note: When you transpose, the sign must change.)
     -6   = x-3
 -6 + 3 = x

Step Three: Combine like terms.
  -6 + 3 = x
      -3   = x

The value of x is -3.

Checking:
   -8+2 = x-3
   -8+2 = (-3)-3
     -6   =  -6

     2) 5+x = 1/2-1/3
         5+x =   1/6
           x   = 1/6 - 5
           x   = -29/6 or -4.833...

     3) 1/4+x = 1/2-1/3
         1/4+x =   1/6
             x   = 1/6 - 1/4
             x   = -1/12 or -0.0833...
 
     4) 1-1/2+m = 3/4+1/2
          1/2+m   =    5/4
              m     = 5/4 - 1/2
              m     = 3/4
 
     5) (2/3)x = 4
            x    =  4 
                      2
                      3
            x    = 12/2
            x    =   6
 
     6) (1/5)y--7
         (1/5)y - (-7)
          1/5 y + 7
 
---Kein09---
1)  -8 + 2 = x - 3
     -6 = x - 3
     x = - 6 + 3
     x = - 6

2)  5 + x = 1/2 - 1/3
     LCD: (2)(3) = 6
     (6)5 + (6)x = (6) 1/2 - (6) 1/3
      30 + 6x =  6/2 - 6/3
      30 + 6x = 3 - 2
       6x = 1 - 30
       6x/6 = -29/6
       x = -29/6

3)  1/4 + x = 1/2 - 1/3
    LCD of 4, 2, 3 is 12
    (12) (1/4) + (12)(x) = (12)(1/2) - (12)(1/3)
     3 + 12x = 6 - 4
     12x = 2 - 3
     12x/12 = -1/12
      x = -1/12

4)  1 - 1/2 + m = 3/4 + 1/2
     LCD of 2, 4  is 4
     (4)(1) - (4)(1/2) + (4)(m) = (4)(3/4) + (4)(1/2)
     4 -2 + 4m = 3 + 2
     2 + 4m = 5
     4m = 5-2
     4m = 3
     4m/4 = 3/4
     m = 3/4

5)  (2/3)x = 4
     (3/2)(2/3) x = 4(3/2)
     x = 12/3
     x = 6

6)  (1/5)y - - 7     (I hope you typed the given correctly)
     (1/5)y + 7
      
   If the given is (1/5)y = 7   (since this is Property of Equality)
   (1/5)y = 7
   (5/1)(1/5)y = 7(5/1)
   y = 35
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