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3x+11y=4

-2x-6y=0

This is for algebra two and I need to use elimination so idk :/

 Oct 5, 2017
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Solve the following system by elimination:
{3 x + 11 y = 4 | (equation 1)
-2 x - 6 y = 0 | (equation 2)

Add 2/3 × (equation 1) to equation 2:
{3 x + 11 y = 4 | (equation 1)
0 x+(4 y)/3 = 8/3 | (equation 2)

Multiply equation 2 by 3/4:
{3 x + 11 y = 4 | (equation 1)
0 x+y = 2 | (equation 2)

Subtract 11 × (equation 2) from equation 1:
{3 x+0 y = -18 | (equation 1)
0 x+y = 2 | (equation 2)

Divide equation 1 by 3:
{x+0 y = -6 | (equation 1)
0 x+y = 2 | (equation 2)

x = -6      and       y = 2

 Oct 5, 2017

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