Answers

2015-09-17T19:46:58+08:00
3x + 4
3(4) + 4 
12 + 4 
= 16
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y-2 
4-2
= 2
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y-2
10-2
= 8
-------------------
8-2 = 6
16+6 = 22
-------------------
3x + 4 = 22
3x = 22 - 4
3x = 18
  x =  6

~hope it help :) but I'm not sure...
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