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how do you solve -5(x-3)+7x=-7

 Sep 25, 2014

Best Answer 

 #2
avatar+23252 
+5

-5(x-3) + 7x = -7             Use the distributive property: -5(x - 3) = -5·x - -5·3 = -5x + 15

-5x + 15 + 7x = -7           Simplify: -5x + 7x = 2x

2x + 15 = -7                    Subtract 15 from both sides.

2x + 15 - 15 = -7 - 15

2x = -22                          Divide by 2.

x = -11 

 Sep 26, 2014
 #1
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0

-5(-7-3)+7   

-7-3=-10 

-5*-10=50

50+7=57

 Sep 25, 2014
 #2
avatar+23252 
+5
Best Answer

-5(x-3) + 7x = -7             Use the distributive property: -5(x - 3) = -5·x - -5·3 = -5x + 15

-5x + 15 + 7x = -7           Simplify: -5x + 7x = 2x

2x + 15 = -7                    Subtract 15 from both sides.

2x + 15 - 15 = -7 - 15

2x = -22                          Divide by 2.

x = -11 

geno3141 Sep 26, 2014

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