Use the substitution method to solve the system 9x−3y=12

Question

, y+6=2x
.(1 point)

Answer 1

We can solve the second equation for y: y = 2x - 6.

Now we can substitute this expression for y into the first equation:

9x - 3(2x - 6) = 12
9x - 6x + 18 = 12
3x + 18 = 12
3x = -6
x = -2

Now we can substitute this value of x back into the second equation to find y:

y + 6 = 2(-2)
y + 6 = -4
y = -10

The solution to the system of equations is x = -2, y = -10.