Decide whether you would use the graphing, substitution, or elimination method to solve the following system of equations. Explain, in complete sentences, why you chose that method.
Part 2: Solve the following system of equations and show all of your work.

2x + 5y = −3
−15x − 5y = −10

Question

Decide whether you would use the graphing, substitution, or elimination method to solve the following system of equations. Explain, in complete sentences, why you chose that method.
Part 2: Solve the following system of equations and show all of your work.

2x + 5y = −3
−15x − 5y = −10

mimi_x3 · Answer

Elimination method.

cathyangs · Answer

I would use elimination, because all the coefficients have no common factor bigger than 1, and the  x coefficients are additive inverses. This will make it easier to use elimination. 
   2x+ 5y=-3
+-15x-5y=-10
--------------
    -13x      =-13
using algebra: x=1. 
2(1)+5y=-3
2+5y=-3
5y=-5
y=-1 
(x,y) = (1,-1)