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Expert: Sherman D. - 7/11/2006


Question
2x+3y=17
y=6x-21

17-9x=18y
12y=11-6x

3x-y=13
2y=6x-26

Answer
2x + 3y = 17
y = 6x - 21

2x + 3y = 17
3y = -2x + 17
y = (-2/3)x + (17/3)

(-2/3)x + (17/3) = 6x - 21
-2x + 17 = 18x - 63
-20x = -80
x = 4

y = 6(4) - 21
y = 24 - 21
y = 3

Unique solution
x = 4
y = 3

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17 - 9x = 18y
-9x + 17 = 18y
y = (-1/2)x + (17/18)

12y = 11 - 6x
12y = -6x + 11
y = (-1/2)x + (11/12)

Same slope, but different y-intercepts

No Solution

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3x - y = 13
2y = 6x - 26

3x - y = 13
-y = -3x + 13
y = 3x - 13

2y = 6x - 26
y = 3x - 13

Same slope and same y-intercept

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Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

Experience

Mathematics, Recipes, History, and Games.

Education/Credentials
High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

Awards and Honors
Principle's list and A and B honor roll in high school only.

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