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

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

Elimination:
2x + 5y = -3 
+
-15x - 5y = -10
=
-13x = -13
/-13
x = 1

anonymous · Answer

Now to find y, you just have to substitute the 1 for x in the equation:
2x + 5y = -3 
2(1) + 5y = -3
2 + 5y = -3
-2
5y = -5
/5
y = -1

anonymous · Answer

The elimination method is easier in this situation because the -5y and +5y from both equations already cancel out when the equations are added together.
Your final solution would be:
x = 1
y = -1
so, (1,-1)

Hope I helped!

anonymous · Answer

Oh my gosh yes , thank you.!

anonymous · Answer

No problem:)