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amm1812
3 years ago
5

-2x – 9y = 11 x – 3y = 17

Mathematics
1 answer:
AysviL [449]3 years ago
6 0
-2x-9y=11x-3y
-2x+2x-9y=11x+2x-3y
-9y=13x-3y
-9y+3y=13x-3y+3y
-6y=13x
y=-13x/6

Plug -13x/6 in for y and solve for x using one of the equations
11x-3(-13x/6)=17
11x+13x/2=17
35x/2=17
35x=34
x=34/35

Plug 34/35 in for x to solve for y now
y=(-13(34/35))/6
y=-221/105

x=34/35       y=-221/105
Now when you plug in those numbers for x and y you get 17 for both equations.

Hope I didn't mess up for your sake.
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Step-by-step explanation:

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<em>Given </em><em>points </em>

<em>(</em><em> </em><em>-</em><em>5</em><em> </em><em>,</em><em> </em><em>2</em><em>)</em><em> </em><em>and </em><em>(</em><em>9</em><em> </em><em>,</em><em> </em><em>0</em><em>)</em>

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<em>=</em><em> </em><em>(</em><em> </em><em>0</em><em>-</em><em>2</em><em>)</em><em> </em><em>/</em><em> </em><em>(</em><em> </em><em>9</em><em>+</em><em>5</em><em>)</em>

<em>=</em><em> </em><em>-</em><em>2</em><em> </em><em>/</em><em> </em><em>1</em><em>4</em>

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