Respuesta :
adding we elimiate a's
5a+5b=25
-5a+5b=35 +
0a+10b=60
10b=60
2nd option
5a+5b=25
-5a+5b=35 +
0a+10b=60
10b=60
2nd option
Answer:
Option (2) is correct
10b = 60
Step-by-step explanation:
Given : System of equations as
5a+5b=25
-5a+5b=35
We have find the resulting equation when elimination is used to solve the given system of equations.
Consider the given system of equations,
5a+5b=25 .....(1)
-5a+5b=35 ....(2)
Adding equation (1) and (2) , we get,
5a + 5b + (-5a + 5b) = 25 + 35
Simplify , we have,
5a + 5b -5a + 5b = 60
10b = 60
Thus, 10b = 60 is used to solve the given system of equations using elimination.