6.03] Part 1: 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

6.03] Part 1: 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

jdoe0001 · Answer

http://openstudy.com/study#/updates/51d89f59e4b041c5c2745d5d

texaschic101 · Answer

I would use elimination because the y's already cancel each other out.
2x + 5y = -3
-15x - 5y = -10
--------------add
-13x = - 13
x = 1
now sub 1 into either of the original equations to find y
2x + 5y = -3
2(1) + 5y = -3
2 + 5y = -3
5y = -3 -2
5y = -5
y = -1
Now lets check it...
-15x - 5y = -10
-15(1) - 5(-1) = -10
-15 + 5 = -10
-10 = -10 (correct)
Your solution is (1,-1)