Question

Use the substitution method to solve the following system of equations.

3x + 5y = 3
x + 2y = 0

Answer 1

First solve for x in the 2nd equation by subtracting 2y on both sides of the equation
x + 2y = 0
x = -2y

Now substitute what x equals in the 1st equation
3x + 5y = 3
3(-2y) + 5y = 3
-6y + 5y = 3
-y = 3
y = -3

Now that we know what y is, we can find out what x equals
x + 2y = 0
x + 2(-3) = 0
x - 6 = 0
x = 6

Answer 2

lol you got that straight off of yahoo xD