Solve 7x – 5x – 3 = x + 4.
A. x = –8
B. x = 6
C. x = 7
D. x = –10
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Answer:
7x-5x-3=x+4
= 7×(-8) -5×6-3=7+4
56-30-3=11
-33=-45
=78
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