Respuesta :

Answer:

27

Question:

Find [tex]x[/tex] so that [tex](x,-14)[/tex] is a solution to [tex]2x+3y=12[/tex] .

Step-by-step explanation:

So we are asked to replace [tex]y[/tex] with -14 and solve for [tex]x[/tex] in the equation:

[tex]2x+3y=12[/tex].

[tex]2x+3y=12[/tex] with [tex]y=-14[/tex]:

[tex]2x+3(-14)=12[/tex]

[tex]2x-42=12[/tex]

Add 42 on both sides:

[tex]2x=54[/tex]

Divide both sides by 2:

[tex]x=27[/tex].

So the [tex]x[/tex]-coordinate that corresponding to [tex]y=-14[/tex] is [tex]27[/tex].

Verify that:

[tex](27,-14)[/tex] is a point satisfying [tex]2x+3y=12[/tex].

Replace [tex]x[/tex] with 27 and [tex]y[/tex] with -14:

[tex]2(27)+3(-14)=12[/tex]

[tex]54+-42=12[/tex]

[tex]12=12[/tex] is true so our work must be right.

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