We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
474
1
avatar
7x-12
3x
 Feb 7, 2012
 #1
avatar+310 
+1

if 7x-12=3x then we can subtract 3x and add 12

4x=12 we can divide by 4

x=3

 

and thats the answer

 Mar 26, 2017

4 Online Users