Respuesta :

KaayDuuh
Substitute the x and y values

[tex]-5(-6)+B(-2)=18[/tex]

Simplify

[tex]30+(-2)B=18[/tex]

Subtract 30 from both sides

[tex](-2)B=18-30[/tex]

Simplify 

[tex](-2)B=-12[/tex]

Divide both side by (-2)

[tex]B= -\frac{12}{2} [/tex]

Simplify

[tex]B=6[/tex]