halinar21
halinar21 halinar21
  • 25-09-2020
  • Mathematics
contestada

-6 - 3(2x + 4) = 18what’s the answer

Respuesta :

Estellia
Estellia Estellia
  • 25-09-2020

Answer:

[tex]x=-6[/tex]

Step-by-step explanation:

[tex]-6-3\left(2x+4\right)=18[/tex]

Add 6 to both sides:

[tex]-6-3\left(2x+4\right)+6=18+6[/tex]

[tex]-3\left(2x+4\right)=24[/tex]

Divide both sides by -3:

[tex]\frac{-3\left(2x+4\right)}{-3}=\frac{24}{-3}[/tex]

[tex]2x+4=-8[/tex]

Subtract 4 from both sides:

[tex]2x+4-4=-8-4[/tex]

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

Divide both sides by 2:

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

[tex]x=-6[/tex]

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