Seudónimo Seudónimo
  • 21-09-2018
  • Mathematics
contestada

-(-6x - 5) = 4(5x + 3)

A) -2

B) -1/2

C) 1/2

D) 2

Please help and show work!!

Respuesta :

gmany
gmany gmany
  • 05-07-2019

Answer:

[tex]\large\boxed{B)\ -\dfrac{1}{2}}[/tex]

Step-by-step explanation:

[tex]-(-6x-5)=4(5x+3)\qquad\text{use the distributive property}\\\\-(-6x)-(-5)=(4)(5x)+(4)(3)\\\\6x+5=20x+12\qquad\text{subtrac 5 from both sides}\\\\6x=20x+7\qquad\text{subtract 20x from both sides}\\\\-14x=7\qquad\text{divide both sides by (-14)}\\\\x=-\dfrac{7}{14}\\\\x=-\dfrac{1}{2}[/tex]

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