Y=-2x
Y=-4x+6
Solve each system by substitution

y = -2x

y = -4x + 6. Set the equations equal to each other because they both equal y.

-2x = -4x + 6. Add 4x to each side.

2x = 6. Divide each side by 2.

x = 3. Substitute 3 for x in one of the first equations to get the y value.

y = -2(3)

y = -6.

To ensure these are the correct numbers, let's plug -6 and 3 back into one of the equations.

-6 = -2(3)

-6 = -6

x = 3 and y= -6 are correct.

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice