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x divided by 15 means the same thing as 5x so-

5x-0.012=0.113

5x=0.113+0.012

5x=0.125

x=0.25

sup

the square

8*3=x(x-2)

24=x^2-2x

x^2-2x-24=0

(x-6)(x+4)=0

x=-6 or x=4

Maybe you should stay in summer school for English?   It's "Bye-bye"     not   "by by"  .

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one second

Couldn't reach site

I think there wouldn't be a radius

(5x-1)^1/3   + 6 = 10

(5x -1)^1/3        = 4

now cube both sides  to get

(5x -1)  = 64

5x         = 65

x           = 13

Nice to meet you too!

not enough info

You need a second equation or the value for x.

Do you mean 3/2x=6

Then x=4

-5/2(x-1)=-3            x=?

-5/2x+5/2=-3

-5/2x=-11/5

x=2.2

4k+5=7k-7+9k

4k-7k-9k=-7-5

-12k=-12

k=1

Not enough info

tethega: You made it seem way harder than it had to be, twenty apples each cut into four peices means that there are four times as many peices as there are apples. 20*4=80.

With problems like these it is a lot quicker to just use logic rather than math.

Mathematics is the study of topics such as quantity, structure, space, and change. There is a range of views among mathematicians and philosophers as to the exact scope and definition of mathematics. thats math your welcome

EIGHTY. How hard is that?