tamia6279
tamia6279 tamia6279
  • 19-12-2018
  • Mathematics
contestada

Solve for x 15x+5x 14x-6

Solve for x 15x5x 14x6 class=

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gmany
gmany gmany
  • 22-12-2018

Look at the picture.

[tex\alpha+\beta=180^o[/tex] - supplementary angles

Therefore we hve the equation:

[tex](14x-6)+(15+5x)=180\\\\(14x+5x)+(-6+15)=180\\\\19x+9=180\qquad\text{subtract 9 from both sides}\\\\19x=171\qquad\text{divide both sides by 19}\\\\\boxed{x=9}[/tex]

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