4 years ago

If the equation is an identity or if it has no solution, write identity or no solution.

Mathematics

1 answer:

Ksenya-84 [330]4 years ago

7 0

Answer:

7n + 5 − 9n = 8 − 2n − 3 = true

-2 n + 5 = 5 - 2 n = true

Step-by-step explanation:

Left-hand side:

Simplify the following:

7 n - 9 n + 5

Grouping like terms, 7 n - 9 n + 5 = 5 + (7 n - 9 n):

5 + (7 n - 9 n)

7 n - 9 n = -2 n:

Answer: -2 n + 5

____________________________

Right-hand side:

Simplify the following:

-2 n - 3 + 8

Grouping like terms, -2 n - 3 + 8 = (8 - 3) - 2 n:

(8 - 3) - 2 n

8 - 3 = 5:

Answer: 5 - 2 n

You might be interested in

I not to sure how to rewrite this problem sin^2 (y)/1-cos(y). can you please explain how to rewrite.

butalik [34]

Using trigonometric identities, sin^2(y) = 1 - cos^2(y).
If you substitute that in, you get 1- cos^2(y)/(1-cos(y)).
You can factorise 1 - cos^2(y) to be (1-cos(y))(1+cos(y)).
This means that the answer is 1 + cos(y) as the 1 - cos(y) will cancel.

4 0

3 years ago

Need help with geometric sequences <br> 30 points

NeTakaya

Answer:

$a_{n}$ = 6 $(5)^{n-1}$

Step-by-step explanation:

The n th term of a geometric sequence is

$a_{n}$ = a $(r)^{n-1}$

where a is the first term and r the common ratio

Here a = 6 and r = 30 ÷ 6 = 5, thus

$a_{n}$ = 6 $(5)^{n-1}$

8 0

3 years ago

A law firm is going to designate associates and partners to a big new case. The daily rate charged to the client for each associ

Zolol [24]

the sun is one hundred and fifty million kilometers away from the earth write this as an ordinary whole number

4 0

3 years ago

A board 12 3 4 feet long is cut so that 9 7 8 feet are left. What length of the board was cut off? A) 2 1 2 ft B) 2 7 8 ft C) 3

Papessa [141]

Answer:

B 2 7/8

Step-by-step explanation:

12 3/4 - 9 7/8 = 2 7/8

5 0

3 years ago

S<br>solve for X<br>2x - Px = 5

maxonik [38]

Answer:

$2x - P = 5 \\ x(2 - P) = 5 \\ \boxed{x = \frac{5}{(2 - P)} }$

5 0

3 years ago