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Best Answer

You have two equations with two unknowns, y and x

To solve,

y = -3x +7

y = 2x -8

since they are equal

-3x + 7 = 2x-8

7= 5x -8

15 = 5x

3 = x

substitute in either equation to get y

y = -2

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12y ago
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Q: How do you do y equals -3x plus 7 and y equals 2x minus 8?
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