How do you solve $2 x + y = 6$ $2x + y = 6$ and $y = 3 x + 4$ $y = 3x + 4$ using substitution?

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How do you solve $2 x + y = 6$ $2x + y = 6$ and $y = 3 x + 4$ $y = 3x + 4$ using substitution?

1 Answer

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Answer 1 · 2016-03-11T22:31:16

$x = \frac{2}{5}$ $x=2/5$

Explanation:

$2 x + y = 6 y = 3 x + 4$ $2x+y=6" "color(green)(y=3x+4)$
$2 x + 3 x + 4 = 6$ $2x+color(green)(3x+4)=6$
$5 x = 6 - 45 x = 2$ $5x=6-4" "5x=2$
$x = \frac{2}{5}$ $x=2/5$

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How do you solve $2 x + y = 6$ $2x + y = 6$ and $y = 3 x + 4$ $y = 3x + 4$ using substitution?

1 Answer

Explanation:

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How do you solve 2x+y=62x + y = 6 and y=3x+4y = 3x + 4 using substitution?

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How do you solve $2 x + y = 6$ $2x + y = 6$ and $y = 3 x + 4$ $y = 3x + 4$ using substitution?