two numbers total -2, and their difference is 4. Find the two numbers

Question

anonymous · Answer

x + y = -2
x - y = 4

anonymous · Answer

Solve one equation for a variable and substitute into the other equation, then find the second variable :) and those are your two numbers

campbell_st · Answer

let your numbers be a and b

then 

a + b = -2     The sum of the numbers
a - b = 4        the difference
 
                      add the 2 equations to eliminate b

2a = 2 

solve for a. 

When you have a substitute into either equation to find b

anonymous · Answer

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