For the following system, use the second equation to make a substitution for x in the first equation.
3x + 2y=7
x-y+3 = 0
What is the resulting equation?
3x - y -3 + 2y = 7
3ly - 3) + 2y = 7
3y-3 + 2y = 7

The answer is either 3(x-y+3)+2y=7 or 3x-3y+9+2y=7, I can't understand the given multiple choice answers.

Step-by-step explanation:

2.83941151 would be the answer you're looking for! : )

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints