Step-by-step explanation: We have the dimensions of a rectangular field given in feet. We are informed that an extension of feet is made to each side. Therefore, the new dimensions can be calculated accordingly. Hence, they are presented as .
The solution encompasses all real numbers. Detailed explanation: To solve a system of equations by elimination, from the given equation, you can derive y to obtain y = x - 6. Substituting this back leads to x - 5(y) = 6, eventually arriving at 6 = 6, thus indicating a solution of all real numbers.