All categories

3 years ago

8n-12=6n+6 I need help figuring out this answer I been having some troble

1 answer:

8 0

Solve the equation with the following steps:
8n-12=6n+6
Subtract 6n from both sides
2n-12=6
Add 12 to both sides
2n=18
Divide both sides by 2
n=9

You might be interested in

What is the product of (2x^2 + 4x-2) and (3x+6) ?

Novosadov [1.4K]

Answer: the answer is 6x³ + 24x² + 18x - 12!

Step-by-step explanation:

6 0

2 years ago

Does anyone know the answer to this!?

PolarNik [594]

Answer:

$|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

Step-by-step explanation:

You can use these Cramer's formulas to solve for x and y:

$x=\dfrac{|A_x|}{|A|},\\ \\y=\dfrac{|A_y|}{|A|},$

where

$|A|=\left|\begin{array}{cc}12&-13\\ \\17&-22\end{array}\right|\\ \\ \\|A_x|=\left|\begin{array}{cc}7&-13\\ \\-51&-22\end{array}\right|\\ \\ \\|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

So,

$|A_y|=\left|\begin{array}{cc}12&7\\ \\17&-51\end{array}\right|$

4 0

3 years ago

Translate the sentence into an inequality.

Liula [17]

Answer:

c=5<-30

Step-by-step explanation:

7 0

3 years ago

Joshua is a year older than his sister McKay. The product of their ages is 33 more than 7 times Joshua’s age. How old are Joshua

joja [24]

Answer:

Joshua is 11 and Mckay is 10.

6 0

2 years ago

Please help me on this question

Alina [70]

Answer:

DE = 13.4 cm (to 1 decimal place)

Step-by-step explanation:

Given: ABCD is a square

BC = AC = 12 cm (opposite sides of a square are congruent)

E is midpoint of BC (given)

BE = EC = 12/2 = 6 cm

CD = AB = 12 cm (opposite sides of a square are congruent)

angle ECD is a right angle (interior angles of a square are 90 deg.)

Consider right triangle ECD

DE = sqrt(EC^2+CD^2) ............. pythagorean theorem

= sqrt(6^2+12^2)

= sqrt ( 36+144 )

= sqrt (180)

= 2 sqrt(45)

= 13.416 (to three dec. places)

8 0

2 years ago

Read 2 more answers