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Otrada [13]
3 years ago
8

Given f(x) = 2x + 5, find x when f(x) = 45

Mathematics
2 answers:
lozanna [386]3 years ago
7 0

Step-by-step explanation:

f(x) = 2x + 5 = 45

2x + 5 = 45

2x = 45 - 5

2x = 40

x = 20

mars1129 [50]3 years ago
7 0

Answer:

f(x) = 2x + 5 = 45

2x + 5 = 45

5-25=2x

40=2x

x = 20

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Step-by-step explanation:

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Answer:

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4 years ago
the length of a rectagle is 5 in longer than its width. if the perimeter of the rectangle is 56 in, find its length and width
lisabon 2012 [21]

Answer:

Step-by-step explanation:

Let the width of the rectangle = x

As length is 5 inches longer than width, we have to add 5 to width

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2 years ago
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