how do you solve system of equations with -x+3y=0 & 2x+6y=12

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18-08-2016
Mathematics

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how do you solve system of equations with -x+3y=0 & 2x+6y=12

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Аноним Аноним · Answer 1 · 2016-08-18T21:36:54+02:00

There are 3 available methods - Substitution , Elimination and Matrix.

The substitution method is used to eliminate one of the variables by replacement.

The elimination method is used for solving linear systems.

A Matrix is an array of numbers.

Lets use Substitution to solve this system.

[tex]x+3y=0[/tex]

[tex]x=-3y [/tex]

Substitute [tex]x=-3y [/tex] into [tex]2x+6y=12[/tex]

[tex]2x+6y=12[/tex]

[tex]2*-3y+6y=12[/tex]

[tex]0=12[/tex]

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