Question 570735
"The length of the hole is 1 cm less than the length of the metal sheet" ___ x + 1 = y


"After the hole is cut, the area of the remaining metal is 11cm squared" ___ (2*x) + 11 = (7/2)*y


substituting ___ 2x + 11 = (7/2)(x + 1) ___ 2x + 11 = (7/2)x + (7/2) ___ 4x + 22 = 7x + 7


solve for x, then substitute back to find y