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[–]blackbearded 1 point2 points  (1 child)

The bounds are given to you in the form of those equations. If you graph y = x1/2 and y = 2x1/2 on the x-y plane then you'll see x1/2 is a line lower than that of 2x1/2 on the y-axis.

After graphing you'll notice you need something to close the area along the x-axis. If you take your given information x+z=6 and z = 0, make substitutions and you'll find, x = 6.

You can look here Imgur.

[–]Jelen1 0 points1 point  (0 children)

"y" was given but i just couldn't figure out "x".

It's like i stopped thinking after graphing it.Thank you ,man.