danielperez238
danielperez238 danielperez238
  • 09-09-2020
  • Mathematics
contestada

Solve for x:
3x + 2x + 7 = 10x - 16
What’s the answer ?

Respuesta :

Estellia
Estellia Estellia
  • 09-09-2020

Answer:

[tex]x=\frac{23}{6}[/tex] or [tex]4.6[/tex]

Step-by-step explanation:

[tex]3x + 2x + 7 = 10x - 16[/tex]

[tex]5x+7=10x-16[/tex]

Subtract 7 from both sides:

[tex]5x+7-7=10x-16-7\\5x=10x-23[/tex]

Subtract 10x from both sides:

[tex]5x-10x=10x-23-10x\\-5x=-23[/tex]

Divide both sides by -5:

[tex]\frac{-5x}{-5}=\frac{-23}{-5}\\x=\frac{23}{5}[/tex] or [tex]4.6[/tex]

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