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3(-3x-1)-9=-5(x-4)

 Nov 4, 2015

Best Answer 

 #5
avatar
+14

Right-hand side is: -5(x - 4). The correct answer is -8

 Nov 4, 2015
 #1
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+11

Too bad!!!!

 Nov 4, 2015
 #2
avatar+1975 
+10

3(-3x - 1) - 9 = 5(x - 4)

Use the Distributive Property

-9x - 3 - 9 = 5x - 20

Simplify

-9x - 12 = 5x - 20

Add 9x to both sides

-12 = 14x - 20

Add 20 to both sides

8 = 14x

Divide by 14 on both sides

0.5714285714285714 = x

I would round

x = about 0.6

 Nov 4, 2015
 #3
avatar
+5

Solve for x:
3 (-1-3 x)-9 = -5 (x-4)

3 (-1-3 x) = -3-9 x:
-3-9 x-9 = -5 (x-4)

Add like terms. -9-3  =  -12:
Answer: | 
| -12-9 x = -5 (x-4)          x=-8

 Nov 4, 2015
 #4
avatar+128707 
+10

Very good, sasefower....I might add one tiny thing.....

 

8 = 14x    divide both sides by 14

 

8 / 14 =    x    = 4 / 7 

 

cool cool cool

 Nov 4, 2015
 #5
avatar
+14
Best Answer

Right-hand side is: -5(x - 4). The correct answer is -8

Guest Nov 4, 2015
 #6
avatar+128707 
+5

Thanks, Guest.......saseflower and  I  missed that  " - "

 

 

 

cool cool cool

 Nov 4, 2015

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