Question 79644
The difference between three times a number and another number is 2. Their sum is 6. Write a system of equations. Then solve for the numbers by graphing the equations.

3x-y=2
-y=2-3x
y=-2+3x
{{{ graph( 300, 200, -6, 5, -10, 10, y=-2+3x) }}}

3x+y=6
y=-3x+6
{{{ graph( 300, 200, -6, 5, -10, 10, y=-3x+6) }}}

y=-2+3x and y=-3x+6
{{{ graph( 300, 200, -6, 5, -10, 10, y=-2+3x, y=-3x+6) }}}