Find the value of two numbers if their sum is 12 and their difference is 4.
Show work please.
2 answers:
Answer:
8,4
Step-by-step explanation:
x+y=12
x-y=4
(x+y)(x-y)=12*4
x^2-y^2=48
x=8 y=4
Answer:
4 & 8
Step-by-step explanation:
x-y = 4 -> x = 4+y
x+y = 12 = 4+y+y -> 4+2*y = 12
-> 2*y = 8 -> y = 4
-> x = 4+y = 8
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