All categories

3 years ago

Given: 5n-42=12n prove: n=-6

Mathematics

2 answers:

Leviafan [203]3 years ago

6 0

Answer:

5n-42=12n

5n-42+42=12n+42

5n=12n+42

5n-12n=12n+42-12n

-7n=42

-7n/-7 = 42/-7

n= -6

Vikentia [17]3 years ago

3 0

Answer:

n=-6

Step-by-step explanation:

5n-42=12n

5n=12n+24

5n-12n=42

-7n=42

divide each side by -7

n does =-6

You might be interested in

Helpppppppppppppppppp

zalisa [80]

Answer:

C. Natalie should take basic courses at the community college until she decides on a career

Step-by-step explanation:

4 0

2 years ago

Robert earned 10$ which is 4 less than twice what Eric earned ,how much did Eric earn?

horrorfan [7]

Dont really understand but i think 6 idk im not really a good mathematical person but who cares im on this app for a reason.

5 0

3 years ago

Read 2 more answers

Someone plzzz help me i suck at math!!!<br>

Kay [80]

Answer:

B. $y=-sin\ x-2$

Step-by-step explanation:

We all suck at math... just lmk if you need more help...

5 0

3 years ago

Solve each of the following for the indicated variable.a. 9 − 6 = 54 for yb. = 2 + 2 for l

marta [7]

Answer:

$\begin{gathered} y=\frac{9}{6}x-9 \\ l=\frac{P}{2}-w \end{gathered}$

Step-by-step explanation:

To solve the following equations, we need to isolate the variable asked using inverse operations to solve equations.

Remember that addition and subtraction are inverse operations, as multiplication and division.

Therefore,

$\begin{gathered} a\text{. Solve for y} \\ 6y=9x-54 \\ y=\frac{9}{6}x-\frac{54}{6} \\ y=\frac{9}{6}x-9 \end{gathered}$ $\begin{gathered} b\text{. Solve for l} \\ P=2l+2w \\ 2l=P-2w \\ l=\frac{P}{2}-\frac{2}{2}w \\ l=\frac{P}{2}-w \end{gathered}$

4 0

1 year ago

Explain how to graph y= -3/2 x + 4

alisha [4.7K]

Answer:

y = 3 x - 4

Step-by-step explanation:

4 0

2 years ago