alliballenger alliballenger
  • 12-10-2014
  • Mathematics
contestada

explain how to do this problem in steps and include answers as well

explain how to do this problem in steps and include answers as well class=

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konrad509
konrad509 konrad509
  • 12-10-2014
[tex]8(4x-5)-12=20x-10\\ 32x-40-12=20x-10\\ 12x=42\\ x=\frac{42}{12}=\frac{7}{2}[/tex]
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rabinshrestha41
rabinshrestha41 rabinshrestha41
  • 12-10-2014
[tex]8(4x - 5)-12=20x-10[/tex]

[tex]32x - 40-12=20x-10[/tex]

[tex]32x -52=20x-10[/tex]

[tex]32x -52 -20x=-10[/tex]

[tex]12x -52=-10[/tex]

[tex]12x =-10 +52[/tex]

[tex]12x =42[/tex]

[tex]x= \frac{42}{12} [/tex]

[tex]x = \frac{7}{2} [/tex]

[tex]x=3 \frac{1}{2} [/tex]  ≈ 3.5
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