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Gretchen Medhurst

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βˆ™ 3y ago
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βˆ™ 15y ago

10x - y = 20 subtract 10x to both sides;

-y = 20 - 10x multiply by -1 to both sides;

y = 10x - 20 make y = 0 to find the x-intercept;

0 = 10x - 20 add 20 to both sides;

20 = 10x divide by 10 to both sides;

2 = x

Thus x-intercept is 2.

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Q: What is the x-intercept of the graph of 10x-y20?
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