Need some help! Medals to anyone who answers! Thanks! It is much appreciated! :D

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

Need some help! Medals to anyone who answers! Thanks! It is much appreciated! :D

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

anonymous · Answer

I would suggest using elimination because you have a 5y in the first equation and a -5y in the second equation.  You can add the two equations together to eliminate the y variable and solve for x.  Once you solve for x, then you can substitute that value into one of the original equations to get y.

anonymous · Answer

2x + 5y = -3
-15x - 5y = -10

2x + (-15x) + 5y + (-5y) = -3 + (-10)
-13x = -13
x = 1

2(1) + 5y = -3
5y = -5
y = -1