SOLUTION: X+y=15 X=y+3 What is x and y equal to?

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Question 1028505: X+y=15
X=y+3
What is x and y equal to?
Found 2 solutions by addingup, MathTherapy:
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
You said it all. If x = y+3, then:
y+3+y = 15
5y = 15
y = 3
Now solve for x. Again, you say that x = y+3:
x = 3+3 Add to get your answer

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

X+y=15
X=y+3
What is x and y equal to?
highlight_green%28matrix%282%2C3%2C+x%2C+%22=%22%2C+9%2C+y%2C+%22=%22%2C+6%29%29