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Pls help me! 19 and 20.

Pls Help Me 19 And 20 class=

Sagot :

Answer:

See below ↓

Step-by-step explanation:

19.

  • [tex]\frac{x-1}{2} - \frac{x-3}{5} - \frac{x-7}{10} + \frac{x-2}{5}[/tex]
  • [tex]\frac{5(x-1)-2(x-3)-(x-7)+2(x-2)}{10}[/tex]
  • [tex]\frac{5x-5-2x+6-x+7+2x-4}{10}[/tex]
  • [tex]\frac{4x+4}{10}[/tex]
  • [tex]\frac{2x+2}{5}[/tex]

20.

  • [tex]\frac{2x+3}{2x} + \frac{x+3}{4x} - \frac{18x+6}{8x^{2} }[/tex]
  • [tex]\frac{4x(2x+3)+2x(x+3)-(18x+6)}{8x^{2} }[/tex]
  • [tex]\frac{8x^{2} +12x+2x^{2} +6x-18x-6}{8x^{2} }[/tex]
  • [tex]\frac{10x^{2}-6}{8x^{2} }[/tex]
  • [tex]\frac{5x^{2}-3}{4x^{2} }[/tex]
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