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3 years ago

Simplify 6z + 9 + 3z + 2

Mathematics

2 answers:

Vlada [557]3 years ago

8 0

Answer:

9z+11

Step-by-step explanation:

6z+9+3z+2

(6z+3z)+(9+2)

9z+11

telo118 [61]3 years ago

7 0

Answer:

9z + 11

Step-by-step explanation:

6z + 9 + 3z + 2

9z + 9 + 2

9z + 11

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3 years ago

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Answer:

${f}^{ - 1} (x)= \frac{ 5 - 2x }{ 4x + 1}$

Step-by-step explanation:

The given rational function is

$f(x) = \frac{x - 5}{ - 4x - 2}$

Let

$y = \frac{x - 5}{ - 4x - 2}$

Interchange x and y

$x= \frac{y- 5}{ - 4y - 2}$

Cross multiply

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Expand

$- 4xy - 2x= y- 5 \\ - 4xy - y= 2x - 5 \\y( - 4x - 1)= 2x - 5$

Solve for y;

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Therefore

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3 years ago

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Answer:

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