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4 years ago

6

Find g(x) if it is known that g(5a)=20a−9.

1 answer:

iren [92.7K]4 years ago

4 0

Answer:

Step-by-step explanation:

This is very short if you know the answer.

g(5a) means that where ever you see x on the right, you put in 5a

So g(5a) = b(5a)- 9 The 9 does not come into it.

b*5a = 20a Divide by 5a

b*5a/5a = 20a/5a

b = 4

So g(x) = 4x - 9

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Select all the equations that are true. 24 x − 8 = 8 ( 3 x − 1 ) 24 x − 8 = 8 ( 3 x − 1 ) 6 m − 15 = 3 ( 2 m − 5 ) 6 m − 15 = 3

galina1969 [7]

Answer:

$24x - 8 = 8 ( 3 x - 1 )$

$6 m - 15 = 3 ( 2 m - 5 )$

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Step-by-step explanation:

Required

Select which of the equation is true

$24x - 8 = 8 ( 3 x - 1 )$

Open the bracket on the right hand side

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Open the bracket on the right hand side

$6m - 15 = 3 * 2m - 3 * 5$

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Both sides of the equation are equal.

Hence, this equation is true

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Open the bracket on the right hand side

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Both sides of the equation are equal.

Hence, this equation is true

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Open the bracket on the right hand side

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Hence, this equation is false

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Open the bracket on the right hand side

$-8 x -12 y - 16 = - 4* 2 x -4 * 3 y -4 * 4$

$-8 x -12 y - 16 = -8x -12y -16$

Both sides of the equation are equal.

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