X+y=3 x-3y= -29 Solve the system by using the elimination method

x= 16

y= -13

Step-by-step explanation:

x+y=3

x-3y=-29

Eliminate x and subtract the equations

2y=-26

y= -13

Plug in y for first or second equation

x=16

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.