How do you solve the following system: $y = 3x – 12, -x+y=5$ ?

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How do you solve the following system: $y = 3x – 12, -x+y=5$ ?

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Answer 1 · 2018-06-21T22:13:12

$x=\frac{17}{2}, y=\frac{27}{2}$

Explanation:

substituting value of $y$ from $y=3x-12$ into $-x+y=5$ we get
$-x+3x-12=5$
$2x=5+12$
$x=\frac{17}{2}$
Substituting $x=\frac{17}{2}$ in $y=3x-12$
$y=3\cdot \frac{17}{2}-12$
$=\frac{27}{2}$
$\thereforex=\frac{17}{2}, y=\frac{27}{2}$

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How do you solve the following system: $y = 3x – 12, -x+y=5$ ?

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Science

Math

Humanities

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How do you solve the following system: y = 3x – 12, -x+y=5y = 3x – 12, -x+y=5?

1 Answer

Explanation:

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How do you solve the following system: $y = 3x – 12, -x+y=5$ ?