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  • 25-09-2020
  • Mathematics
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-8x-27=-7\left(1+2x\right)+2x

Respuesta :

Estellia
Estellia Estellia
  • 25-09-2020

Answer:

[tex]x=5[/tex]

Step-by-step explanation:

[tex]-8x-27=-7\left(1+2x\right)+2x[/tex]

Expand:

[tex]-8x-27=-7\times 1-7\times 2x+2x[/tex]

[tex]-8x-27=-7-12x[/tex]

Add 27 to both sides:

[tex]-8x-27+27=-7-12x+27[/tex]

[tex]-8x=-12x+20[/tex]

Add 12x to both sides:

[tex]-8x+12x=-12x+20+12x[/tex]

[tex]4x=20[/tex]

Divide both sides by 4:

[tex]\frac{4x}{4}=\frac{20}{4}[/tex]

[tex]x=5[/tex]

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