Question

Find two numbers whose sum is 1 and whose difference is -3.
Your answer is:

Answer 1

-2 -4

Explanation:

Answer 2

Answer: -1 and 2

Explanation:

a = 1st number

b = 2nd number

a + b = 1

a - b = -3

Use the elimination method. You will get

2a = 1 + -3 = -2

a = -2/2

a = -1

a + b = 1

Substitute a for -1

-1 + b = 1

Add 1 to both sides

b = 2

The two numbers are -1 and 2

Hope that helped!