Find two numbers if their sum is -11 and their difference is 41

Answer 1

let the two numbers be x and y

Then x + y = -11

And x - y = 41

Solve the first equation for y by subtracting x from both sides giving:

y = -11 - x

Since y and "-11 - x" are the same, plug in "-11 - x" wherever you see y in the second equation or:

x - (-11 - x) = 41 and solve for x:

x + 11 + x = 41

2x = 30

Finish solving for x then plug what you get for x back into y = -11 - x to find out what y is.