can someone explain this math to me? i dont want you to solve it, just help me understand? =]?

Question

6s+9s=18
solve for s

PLEASE HELP!!
i seriously dont know how to do this
and likee i cant ask my math teacher
and my mom doesnt have a clue

imcp
my mom doesnt have a clue because were german
i just started school here
and we have to show our work

in germany we do it diferently
so if she did it her way the teacher would mark it as wrong because i got my answer the wrong way.
so stop insulting my mom.
thnks.

Answer 1

You have 6s + 9s --> this is simply 15s.

Now your equation is:
15s = 18

Now divide both sides by 15:
15s ÷ 15 = 18 ÷ 15

On the left side you have just s because 15 cancels out.
s = 18 / 15

Now reduce the fraction:
s = 6 / 5

If you like, turn the improper fraction into a mixed fraction or a decimal:
s = 1 1/5
or
s = 1.2

To double check, put your value for s back into the equation and make sure it balances:
6s + 9s = 18
6(6/5) + 9(6/5) =? 18
36/5 + 54/5 =? 18
90/5 =? 18
18 = 18 check

So your answer of s = 6/5 is correct

Answer 2

This is what I think.
6s+9s=18
6-6s+9s-6s=18
3s=18
3s/3=18/3 = 6

Answer 3

s(6+9)=18
s*15=18
s*15/15=18/15
s=18/15
=6/5

Answer 4

6s+9s=18
15s=18
s=1 1/5

s is a "variable"
When you have a certain number of a given variable plus another number of the same variable, you just add the numbers.
Then you just divide out the certain number.
Then you reduce the resulting fraction.

Answer 5

i'm uncertain what your attempting to unravel, yet this the thank you to unravel it for words consistent with 2d: For the 1st concern, you ought to first convert the two min. to a hundred and twenty seconds. Then divide a hundred and twenty by the ninety words to get a million.3333.... this implies Jeanna can sort a million.33 words in one 2d. x/y=n a hundred and twenty/ninety=a million.33 For the 2d concern, purely divide 10 seconds by one hundred sixty words to get .0625 words consistent with 2d. x/y=n 10/one hundred sixty=.0625. desire this helped!