...Hello everyone, I am doing some Algebra 2 work and I have two substitution problems that I am stuck on from a worksheet.

"SOLVE EACH BY SUBSTITUTION:"

Here is the first one that I am stuck on:

Y = 3X + 1

Y = 3X + 5

3x+1 = 3x+5

subtract 3x from both sides

1 = 5 ... what does this tell you?

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Here is the second one:

Y = 7 - 2X

2X + Y = 7

2x + (7 - 2x) = 7

7 = 7 ... what does this tell you?

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