a + b = -48
a - b = 17
--------------- add
2 a = -31
a = -15.5
-15.5+ b = -48
b = -48 + 15.5 = -32.5
==================
Check
-15.5 + - 32.5 = - 48 yes
-15.5 - -32.5 = -15.5 + 32.5 = 17 yes
The sum of two numbers is -48 and their difference is 17. Find the numbers.
1 answer