SOLUTION: Find the value of two numbers if their sum is 12 and their difference is 4.

Algebra ->  Test -> SOLUTION: Find the value of two numbers if their sum is 12 and their difference is 4.      Log On


   

Question 738162: Find the value of two numbers if their sum is 12 and their difference is 4.
Answer by aliafzal14(13) About Me  (Show Source):
You can put this solution on YOUR website!
first of all write the problem in the form of equation
like
x+y=12
x-y=4
by solving this equation
add these two equation
(x+y)+(x-y)=12+4
2x=16
x=8 now put this in the equation
y=4