She made 15 cookies
<em><u>Solution:</u></em>
Let "x" be the number of cookies she made
She gave 1/3 of cookies for her husband
Therefore,

Find the remaining

1/4 of the cookies to her son
Therefore,

Now again find the remaining

1/6 of a cookies to her neighbor

Now again find the remaining

She ate the remaining six cookies
Therefore,

Thus she made approximately 15 cookies
Well 2x plus 7x equals 9x
6+3 equals 9
so 9x-9
Once again, I hate proofs so much.
One easy solution is to follow the common logic which is if two lines are both straight and equidistant from each other, SO THEIR PARALLEL, but since education these days asks us to write theses stupid "proofs" here's my attempt:
First off what must we prove to show that two lines are parallel??
Well, the<span> first way is </span>if<span> the corresponding angles, the angles </span>that<span> are on the same corner at each intersection, are equal. If those angles are the same, then the </span>lines are parallel<span>. The second is </span>if<span> the alternate interior angles, the angles </span>that<span> are on opposite sides of the transversal and inside the </span>parallel lines, are<span> equal, then the </span>lines are also parallel<span>.
Well angles 1, 2, 3, 4, 5, 6, 7 and 8 are equal and also 90 degrees, thus the corresponding angles and alternate interior angles are all equal, which means that these two lines are parallel. </span>
I think You have to divide 159 by 11, and that would make you get 14.