Question

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

3x − 6y = 3
7x − 5y = −11

Answer 1

"I used substitution.
Equation 1: 3x - 6y = 3
Equation 2: 7x - 5y = -11

Let's define x in terms of y in Equation 1

3x - 6y = 3

3x = 6y + 3
divide both sides by 3
x = 2y + 1

Now substitute this new definition of x into Equation 2

7x - 5y = -11
7(2y + 1) - 5y = -11
14y -5y + 7 = -11
9y = -18
divide both sides by 9
y = -2

Now substitute this value of y into our definition of x

x = 1 + 2y
x = 1 + 2(-2)
x = 1 -4
x = -3

So in conclusion

y = -2
x = -3"
from yahoo lol

Answer 2

haha
im doing the same thing