2 years ago

Solve for u. 8u-21 = 2u-9

Mathematics

2 answers:

erastovalidia [21]2 years ago

6 0

Answer:

u=2

Step-by-step explanation:

8u-21 = 2u-9

+21 +21

8u= 2u + 12

-2u -2u

6u= 12

divide by 6, u=2 !!

garri49 [273]2 years ago

3 0

Answer:

u = 2

Step-by-step explanation:

8u - 21 = 2u - 9

subtract 2 u from both sides

6u - 21 = -9

add 21 to both sides

6u = 12

divide both sides by 6

u = 2

hope this helps

You might be interested in

34x=23+34/5+12x<br><br> btw anyone wanna add me on insta am bored

klasskru [66]

Answer:

sure its ablackmore

Step-by-step explanation:

7 0

2 years ago

Write the value of the expression 2^3/2^3

kiruha [24]

Answer:

Step-by-step explanation:

$\frac{2^3}{2^3}\\\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}\\=2^{3-3}\\2^{3-3}=1\\2^{3-3}\\\mathrm{Subtract\:the\:numbers:}\:3-3=0\\=2^0\\\mathrm{Apply\:rule}\:a^0=1,\:a\ne \:0\\=1$

6 0

2 years ago

Question 4: Please help, I have no idea what the answer is.

Zarrin [17]

The correct answer is C.

6 0

3 years ago

valerie has 20 stuff animals. she wants to store them in plastic bags. she estimates she can fit 3 stuffed animals in each bag.

Rudiy27

Answer: it’s not an even number it 6.6 repeating so if round up and say 7 bags

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

a single carton of juice cost $4.20. A special offer pack of 3 cartons cost $9.45. Jace bought a special offer instead of 3 sing

Ostrovityanka [42]

The 3 pack cost $9.45

3 single cartons would have cost: 3 x 4.20 = $12.60

Difference in cost: 12.60 - 9.45 = $3.15

Percent savings : 3.15/ 9.45 = 0.3333

0.333 x 109 = 33.33%

Round the answer as needed

7 0

2 years ago