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Guest,  I see what you are saying.  This is a mistake on my hand.  I am still learning this stuff,  and I am glad I have people who can point out my mistakes.  Thank you!

happy7:

Your answer is wrong. You cannot divide just ONE term on the LHS by 4. You must divide both terms: The correct answer is that of "Guest # 1":

y = 8 - 4x, or

y = 4(2 - x)

Divide both sides by 4.

The answer is A/4=W

I hope this helps! @-Happy7/Ethan

V' is (-1,-4) so C

1mmx2^n = 7.84^21 I assume you want to solve for n?

1mmx2^n = 7.84^21 take the log of both sides

1mm x n =  Log(7.84^21) / Log(2)

n = 72.73134....etc.

Divide both sides by 4.

x + y = 2

Subtract x from both sides.

y = 2 - x

That is your answer!!

@-Happy7/Ethan

4x+y=8 solve for y

4x + y=8 subtract 4x from both sides

y = 8 - 4x

Solve for u:
4 u^2+4 u+1 = 75

Divide both sides by 4:
u^2+u+1/4 = 75/4

Write the left hand side as a square:
(u+1/2)^2 = 75/4

Take the square root of both sides:
u+1/2 = (5 sqrt(3))/2 or u+1/2 = -(5 sqrt(3))/2

Subtract 1/2 from both sides:
u = (5 sqrt(3))/2-1/2 or u+1/2 = -(5 sqrt(3))/2

Subtract 1/2 from both sides:
Answer: |u = (5 sqrt(3))/2 - 1/2  = -4.8301270..    or       u = -1/2 - (5 sqrt(3))/2== 3.8301270

Solve for x:
1/2 (x-π/2) = 0

Multiply both sides by 2:
x-π/2 = 0

Add π/2 to both sides:
Answer: |x = π/2

Put it in your calculator

5 * 58276234

Then divide by 9

Then multiply by 57

Then divide by 23

Then multiply by 96.927

Thanks :D

it should be x=1.5708

from this calculator I got it it helped me a lot threw my mth corse and I am still using it

https://www.symbolab.com/solver/step-by-step

just copy and paste and you should be good for other questions well most that deals with algebra

well its better if you know A- but if you dont then divide both sides by 4- equation would = a/4=w

A multiple is any number that can be divided by another number to result a number.  So,  for multiples of 18,  you are looking for number that can be divided cleanly and result in 18.  To find multiples easily,  multiply 18 by numbers. 

18 * 1 = 18

18 * 2 = 36

18 * 3 = 54

18 * 4 = 72

18,  36,  54,  and 72 are a few of 18's multiples.

Note multiples can also be negative.

18 * -1 = -18

18 * -2 = -36

18 * -3 = -54

18 * -4 = -72

-18,  -36,  -54,  and -72 are also multiples of 18.  I hope this helps! @-Happy7

¿Cómo estás, estás familiarizado con este sitio?

Let's set up an equation.

92.94=20.26+36.34h

Subtract both sides by 20.26.

92.94-20.26=20.26-20.26+36.34h

72.68=36.34h

Divide both sides by 36.34

72.68/36.34=36.34h/36.34

2=h

Now,  we must remember that the 36.34h was for each additional hour,  20.26 was for the original hour.

So we add on 1 to 2 and we find out the plumber was at that household for 3 hours.  I hope this helps,  and have  a great day! @-Happy7

It seems like a good site, but I was looking for more of a self-test one ( sorry for not making that clear, I wasn't aware of what to call such a site, when making the post).