ok, i get it now:
x=y+yx
PLEASE tell me how you are supposed to come to the answer to this. and what is the answer:
a number x is y more than a number y times x
i'm a little confused, and i have to teach this to a student.
thanks a lot
3 answers
"a number x is y more than a number y times x"
Let's break it into parts.
"a number y times x" = y*x
"a number x is y more" x - y, because x = ___ + y
Now put it together.
x - y = y*x
x = y*x + y
Now factor out y:
x = y*(x+1)
y = x / (x+1)
Now you have y in terms of x. Solutions to y and x cannot be found without another equation.
Let's break it into parts.
"a number y times x" = y*x
"a number x is y more" x - y, because x = ___ + y
Now put it together.
x - y = y*x
x = y*x + y
Now factor out y:
x = y*(x+1)
y = x / (x+1)
Now you have y in terms of x. Solutions to y and x cannot be found without another equation.
this is the answer in my book: x=y+yx