+0  
 
0
31
1
avatar+251 

A. x = 3

 

B X = 7 

 

C. X=7

 

D. x =15 

 Feb 26, 2019
 #1
avatar+824 
+2

2x + 3(x-10) = 45
 

2x + 3x - 30 = 45

 

5x = 75

 

x = 15 (D)

 Feb 26, 2019

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