Problem: how can i find (x,y)x+y=-3 x=Y+1
i need the check to
x + y = -3
x = y + 1
Substitute the value of x from the second equation
into the first equation.
x + y = -3
(y + 1) + y = -3
2y + 1 = -3
2y = -4
y = -2
x = y + 1
x = -2 + 1
x = -1
Answer: (-1, -2)