Question

What is the value of the y variable in the solution to the following system of equations?

3x - 6y = 3
7x - 5y = -11
Answer
-3
-2
x can be any number as there are infinitely many solutions to the system.
There is no x value as there is no solution to the system

i got -2 ..

Answer 1

3x - 6y = 3
7x - 5y = -11

this one we're going to need to transform one equation so when added one of the variable terms is eliminated. to do this i'm going to multiply 3x - 6y = 3 by -7:
-7(3x - 6y) = -7(3)
-21x + 42y = -21

and then i will multiply 7x - 5y = -11 by 3:
21x - 15y = -33

add them:
21x - 21x - 15y + 42y = -21 - 33
27y = -54
y = -2

B.

Answer 2

b