Answer key for "Systems of Equations: Number of Solutions" worksheet with explanations and circled answers.

Answer key for a worksheet on systems of equations, showing problems with equations, solutions (one solution, no solution, infinite solutions), and explanations.

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- $ y = -4x + 1 $ and $ y = 1 - 4x $ → Infinite solutions
- $ 4x - y = 2 $, $ y = x - 8 $ → One solution
- $ y = -2x + 5 $, $ 6x + 3y = 15 $ → Infinite solutions
- $ 2x + y = 7 $, $ 3y = -6x + 9 $ → No solution
- $ y = 1.2x - 0.2 $, $ y = 3.8x - 0.2 $ → One solution
- $ -\frac{7}{2}x + \frac{1}{2}y = 4 $, $ y = 7x + 8 $ → Infinite solutions
- $ 24x + 8y = 3.2 $, $ y = -3x + 0.2 $ → No solution
- $ 6y = 9x + 1.8 $, $ 1.5x - y = -0.3 $ → Infinite solutions

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