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2 years ago

(9x−4)−(2x−7) simplified

Mathematics

2 answers:

Andrej [43]2 years ago

8 0

Answer:

7x-11

Step-by-step explanation:

9 x - 4 − 2 x - 7

Next, group like terms:

9 x − 2 x − 4 − 7

Now, combine like terms:

( 9 − 2 ) x + ( − 4 − 7 )

7 x +( − 11 )

7 x − 11

Ainat [17]2 years ago

4 0

Answer:7x+3

Step-by-step explanation:

(9x-4)-(2x-7)

Open brackets

9x-4-2x+7

Collect like terms

9x-2x-4+7

7x+3

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sineoko [7]

We have been given an expression $\left(\dfrac {6}{17}\right)^{9x}$ . We are asked to find the value of A when rewrite our given expression as $A^{x}$ .

To solve our given problem, we will use exponent properties.

Using exponent property $a^{mn}=(a^m)^n$ , we can rewrite our given expression as:

$\left(\dfrac {6}{17}\right)^{9x}=\left(\left(\dfrac {6}{17}\right)^9\right)^{x}$

Now, we will compare our expression with $A^{x}$ .

Upon comparing $\left(\left(\dfrac {6}{17}\right)^9\right)^{x}$ with $A^{x}$ , we can see that $A=\left(\dfrac {6}{17}\right)^9$ .

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