Unit 4 8th Grade Review

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Solve the equation 4x - 8 = 5(x - 7)

x = 27

Solve the systems of equations using substitution 4x + 2y = 16 and y = -½x + 5

(2, 4)

How many solutions does the system of equations Y = -5x + 4 and Y = 5x + 7 have? What would the graph of both equations look like?

One solution. Two graphs crossing at one point.

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