turtl311 turtl311
  • 10-04-2018
  • Mathematics
contestada


[tex]2a - 3 \geqslant 11[/tex]

Respuesta :

gmany
gmany gmany
  • 03-08-2019

Answer:

[tex]\large\boxed{a\geq7\to a\in[7,\ \infty)}[/tex]

Step-by-step explanation:

[tex]2a-3\geq11\qquad\text{add 3 to both sides}\\\\2a-3+3\geq11+3\\\\2a\geq14\qquad\text{divide both sides by 2}\\\\\dfrac{2a}{2}\geq\dfrac{14}{2}\\\\a\geq7[/tex]

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