let first number = x
second number = y
The sum of two integers is 143 and their difference is 47.
x + y = 143
The sum of two integers is 143 and their difference is 47.
x - y = 47
SOLVE:
x = 143 - y
x - y = 47
substitute
143 - y -y =47
143 -47 = 2y
y = 48
substitute
x + 48 = 143
x=95
therefore the two numbers are 48 and 95
