The sum of two numbers is 28 and their
difference is 4. Find the numbers.
2 answers:
Answer:
Two numbers are 16 and 12
Step-by-step explanation:
Let x and y be the numbers
x + y = 28 (1)
x - y = 4 (2)
y = x - 4 (2')
sub (2') into (1)
x + x - 4 = 28
2x = 32
x = 16
Sub x value into equation (1)
16 + y = 28
y = 28 - 16
y = 12
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