SOLUTION: Two numbera that's difference is 3 but its sum is 45

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Question 522510: Two numbera that's difference is 3 but its sum is 45
Found 2 solutions by jim_thompson5910, oberobic:
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
x-y=3
x+y=45

Add the two equations to get

2x=48

Now solve for x

2x=48
x=48/2
x=24

Now use this to find y

x-y=3
24-y=3
-y=3-24
-y=-21
y=21

So the solutions are x=24 and y=21

So the two numbers are 24 and 21

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Answer by oberobic(2304) (Show Source):
You can put this solution on YOUR website!
x + y = 45
y = x+3
.
substitute
.
x +(x+3) = 45
2x = 42
x = 21
y = x+3 = 24
.
The two numbers are 21 and 24.
.
Done.