What is the solution of the system use substituion 3x-4y=9 -3x+2y=9

Solve for x in 3x - 4y = 9

x = 9 + 4y/3

Substitute x = 9 + 4y/3 into -3x + 2y = 9

-9 - 2y = 9

Solve for y in -9 - 2y = 9

y = -9

Substitute y = -9 into x = 9 + 4y/3

x = -9

Therefore,

x = -9

y = -9

answer:

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i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.