Thread: Algebra

If z^x=y^2x, 2^z=2(4^x) and x+y+z=6, then a possible value for y is:

(a) -3/11
(b)11/3
(c)3/11
(d)none of these

Could someone please show me how to find the answer?

Originally Posted by xwrathbringerx

If z^x=y^2x, 2^z=2(4^x) and x+y+z=6, then a possible value for y is:

(a) -3/11
(b)11/3
(c)3/11
(d)none of these

Could someone please show me how to find the answer?

implies

implies that or

so



can be written:



so now just check the candidate.

CB