sondenso wrote:

Do you have any tips for absolute value problem? When problem involves x and y, I am in block.

The right but long approach is:

\(|x| + |y| = 5\)

is equal:

\(x+y=5\text{ if x\ge0;y\ge0}\)

\(x-y=5\text{ if x\ge0;y<0}\)

\(-x+y=5\text{ if x<0;y\ge0}\)

\(-x-y=5\text{ if x<0;y<0}\)

shortcut:

your drawing have to be symmetric for x and y. Therefore you can draw only x+y=5 (I quadrant) and use mirror symmetry

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