Solve each system by elimination> 9x-3y=3: 3x+8y=-17

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asked Jul 21, 2016 81.5k views

1 Answer

Adam Eliezerov · Answer 1 · 2016-07-25T03:45:58+0000

9x-3y=3. |x3| 27x-9y=9
3x+8y=-17. |x9|27x+72y=-153
--------------------------------- -

-81y=162
y=-2

9x-3y=3
9x-3(-2)=3
9x+6=3
9x=3-6
x=-3/9
x=-⅓

x=-⅓
y=-2

Solve each system by elimination> 9x-3y=3: 3x+8y=-17

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