SOLUTION: Can you please explain substitution to me step by step?

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Question 265223: Can you please explain substitution to me step by step?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Can you please explain substitution to me step by step?
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Equations:
x + y = 3
2x + 3y = 5
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Solve the 1st for "x":
x = 3-y
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Substitute for "x" in the 2nd equation:
2(3-y) + 3y = 5
6 -2y + 3y = 5
y = -1
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Since x = 3-y
x = 3--1 = 4
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Solution: (4,-1)
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C3-x%2C%28-2%2F3%29x%2B%285%2F3%29
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Use Google to search for "algebra substitution examples"
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Cheers,
Stan H.