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1. 
12x+18=8x+38
2. 
5x+3=4x+7
A.
4
B.
3
C.
5
D.
6
3. 
4x-4=3(2x-1)
A.
-2
B.
-1.5
C.
2
D.
1.5
4. 
4x-5=6x-7
5. 
5x-3=3(x-1)