Question 37609
4x + 4y = 4
4y = -4x + 4
{{{y = -x + 1}}} first equation
x + y = 1
{{{y = -x + 1}}} second equation
graph:
*[invoke describe_linear_equation 4, 4, 4]
graph:
*[invoke describe_linear_equation 1, 1, 1]
The point where they meet is your answer, so you have infinite amount of answers.