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Mathematics
Starr
27 June, 03:21
Given f (x) = - 10x + 45, find x when f (x) = 15.
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Taliyah Espinoza
27 June, 07:13
0
3 = x
Step-by-step explanation:
f (x) = - 10x + 45
f (x) = 15
15 = - 10x + 45
Subtract 45 from each side
15-45 = - 10x+45-45
-30 = - 10x
Divide each side by - 10
-30/-10 = - 10x/-10
3 = x
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