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5x-[-3x-(-2y+5x)-(10x-3y-4x)]  there is a line above 3y-4x (dont know if it will matter.)

 

answers

12-y

27x-5y

6x-5y

23x-5y

 Oct 11, 2014

Best Answer 

 #1
avatar+23254 
+5

The line above the  3y - 4x  does matter; it indicates that the  3y - 4x  is to be considered as one group; it means the same thing as if they put parentheses around the  3y - 4x. Putting square parentheses around the 3y - 4x, we get:

5x - [-3x - (-2y + 5x) - (10x - [3y - 4x] ) ] 

Work from the inside parentheses out:                      simplifying the   - [3y - 4x]:

5x - [-3x - (-2y + 5x) - (10x - 3y + 4x) ]                  simplifying the  10x - 3y + 4x:

5x - [-3x - (-2y + 5x) - (14x - 3y) ]                          simplifying the   - (-2y + 5x):

5x - [-3x + 2y - 5x - (14x - 3y) ]                              simplifying the   - (14x - 3y):

5x - [-3x + 2y - 5x -  14x + 3y ]                               simplifying the  -22x + 5y:

5x - [-22x + 5y] 

5x + 22x - 5y

27x - 5y

 Oct 11, 2014
 #1
avatar+23254 
+5
Best Answer

The line above the  3y - 4x  does matter; it indicates that the  3y - 4x  is to be considered as one group; it means the same thing as if they put parentheses around the  3y - 4x. Putting square parentheses around the 3y - 4x, we get:

5x - [-3x - (-2y + 5x) - (10x - [3y - 4x] ) ] 

Work from the inside parentheses out:                      simplifying the   - [3y - 4x]:

5x - [-3x - (-2y + 5x) - (10x - 3y + 4x) ]                  simplifying the  10x - 3y + 4x:

5x - [-3x - (-2y + 5x) - (14x - 3y) ]                          simplifying the   - (-2y + 5x):

5x - [-3x + 2y - 5x - (14x - 3y) ]                              simplifying the   - (14x - 3y):

5x - [-3x + 2y - 5x -  14x + 3y ]                               simplifying the  -22x + 5y:

5x - [-22x + 5y] 

5x + 22x - 5y

27x - 5y

geno3141 Oct 11, 2014

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