Rewrite the system of inequalities, adding x, + X2 + x3

Extracted text: Rewrite the system of inequalities, adding x, + X2 + x3 < 50="" slack="" variables="" or="" subtracting="" surplus="" variables="" as="" needed.="" х1="" +="" x2="" +="" x3224="" x1="" +x2="" 2="" 11="" o="" a.="" x,="" +x2="" +="" x3="" +="" s,="50" x1="" +="" x2="" +="" x3="" –="" s2="24" x1="" +="" x2="" -="" s3="11" o="" b.="" x1="" +="" x2="" +="" x3="" +="" s1="24" xq="" +="" x2="" +="" x3="" –="" s2="50" о="" с.="" х="" +х,="" +="" x3="" -="" s,="" %3d="" 50="" x1="" +="" x2="" +="" x3="" +="" s2="24" o="" d.="" x1="" +="" x2="" +="" x3="" –="" s,="50" x1="" +="" x2="" +="" x3="" +="" s2="24" xq="" +="" x2="" +="" s3="">