Answer:
-5+3x
Step-by-step explanation:
3+(x+1)+3(x+1)-12
3+1+3(x+1)-12
3+1+3x+3-12
= -5+3x
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Answer:
-5+3x
Step-by-step explanation:
3+(x+1)+3(x+1)-12
3+1+3(x+1)-12
3+1+3x+3-12
= -5+3x