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3 years ago

If f ( x ) = 2 x - 5, then f (4) is _____. 3 5 4 17

Mathematics

2 answers:

ICE Princess25 [194]3 years ago

7 0

The answer is 3

if you substitute x as 4 then it would be 2 x 4 = 8

8-5=3

mash [69]3 years ago

6 0

The answer is 3 because it just 3

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2 years ago

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Serggg [28]

For this case we must find the value of the variable "p" of the following equation:

$3p-2 (p-4) = 7p + 6$

We apply distributive property on the left side of the equation taking into account that $+*-=-$ and $- * - = +$ :

$3p-2p + 8 = 7p + 6$

We add similar terms:

$p + 8 = 7p + 6$

We subtract $7p$ from both sides of the equation:

$p-7p + 8 = 6\\-6p + 8 = 6$

We subtract 8 from both sides of the equation:

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We divide by -6 on both sides of the equation:

$p = \frac {-2} {- 6}\\p = \frac {1} {3}$

Answer:

$p = \frac {1} {3}$

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