Minimize g=6x+8y\displaystyle {g}={6}{x}+{8}{y}
Subject to 7x+2y693x+4y154x+6y88x0y0\displaystyle {\left.\begin{array}{ccc} {7}{x}+{2}{y}&\ge&{69}\\-{3}{x}+{4}{y}&\ge&-{15}\\{4}{x}+{6}{y}&\le&{88}\\{x}&\ge&{0}\\{y}&\ge&{0}\end{array}\right.}


Minimum is at