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slava [35]
3 years ago
13

14) Given f(x) = -3x + 21, find x when f(x) = 6. A) -2 3 5. D) 7

Mathematics
1 answer:
TEA [102]3 years ago
8 0
-3x + 21 = 6
-3x = -15
Divide by 3
Solution: x = 5
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