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Simplify each expression.

6. 5r²/7 - 5r² - 7/7
7. 36/s+6 + 6s/s+6
8. 3t/8 + 5t+8/8
9. 7/5-u - 2+u/5-u
10. 3v + 1/9 - 3v/9

Need solution.​


Sagot :

SIMPLY EACH EXPRESSION

Answer:

[tex] \sf{6. \: \frac{5r ^{2} }{7} - \frac{5r^{2} - 7}{7} }[/tex]

  • [tex] \boxed{ \sf \bold{ = \: \frac{7}{7} \: or \: 1}} [/tex]

[tex] \sf{7. \: \frac{36}{s + 6} + \frac{6s}{s + 6} }[/tex]

  • [tex]\sf{ \frac{6s + 36}{s + 6} }[/tex]
  • [tex]\sf{ \frac{6 \cancel{(s + 6)}}{ \cancel{(s + 6)}}}[/tex]
  • [tex] \boxed{ \sf \bold{ = \: 6}}[/tex]

[tex] \sf{8. \: \frac{3t}{8} + \frac{5t + 8}{8} }[/tex]

  • [tex]\sf{ \frac{3t + 5t + 8}{8} = \frac{8t + 8}{8} }[/tex]
  • [tex] \sf{ \frac{\cancel{8}(t + 1)}{ \cancel{8}} }[/tex]
  • [tex] \boxed{ \sf \bold{ = \: t + 1}} [/tex]

[tex] \sf{9. \: \frac{7}{5 - u} - \frac{2 + u}{5 - u} }[/tex]

  • [tex] \sf{ \frac{7 - 2 - u}{5 - u} }[/tex]
  • [tex] \sf{ \frac{5 - u}{5 - u} }[/tex]
  • [tex] \boxed{ \sf \bold{ = \: 1}}[/tex]

[tex] \sf{10. \: \frac{3v + 1}{9} - \frac{ \cancel{3}v}{ \cancel{9}} } [/tex]

  • [tex] \sf{ \frac{3v + 1}{9} - \frac{v}{3} }[/tex]
  • [tex] \sf{ \frac{ \cancel{3v} + 1 \cancel{- 3v}}{9} }[/tex]
  • [tex] \boxed{ \sf \bold{ = \: \frac{1}{9} }}[/tex]