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5 votes
I'm confused with this

I'm confused with this-example-1
User BPCorp
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1 Answer

2 votes
7b +3- 4b=3-3(b+4)
3b+3=3-3b-12
3b+3=-9-3b
6b+3=-9
6b=-12
b=-2
User BugsOverBugs
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