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3x + 6y = 5

-6x + 9y = 4 multiply by 2 the first equation

2(3x + 6y = 5)

-6x + 9y = 4

6x + 12y = 10

-6x + 9y = 4 add both equations

21y = 14 divide by 21 to both sides

y = 14/21 simplify

y = 2/3

3x + 6y = 5 replace 2/3 with x

3(2/3) + 6y = 5

2 + 6y = 5 subtract 2 to both sides

6y = 3 divide by 6 to both sides

y = 1/2

Thus, the solution point is (1/2, 2/3).

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14y ago
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Q: 3x plus 6y equals 5 -6x plus 9y equals 4?
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