kamelia13015 kamelia13015
  • 23-02-2019
  • Mathematics
contestada

Bonjour pourriez-vous m’aider à résoudre ses équations svp merci ???

Bonjour pourriezvous maider à résoudre ses équations svp merci class=

Respuesta :

WojtekR
WojtekR WojtekR
  • 23-02-2019

[tex]\dfrac{3x+2}{5}-\dfrac{5x-7}{2}=\dfrac{-8x+3}{25}\quad\Big|\cdot 50\\\\\\\\\dfrac{50\cdot(3x+2)}{5}-\dfrac{50\cdot(5x-7)}{2}=\dfrac{50\cdot(-8x+3)}{25}\\\\\\\\10\cdot(3x+2)-25\cdot(5x-7)=2\cdot(-8x+3)\\\\30x+20-125x+175=-16x+6\\\\30x-125x+16x=6-20-175\\\\-79x=-189\quad|:(-79)\\\\\\\boxed{x=\frac{189}{79}=2\frac{31}{79}}[/tex]

Answer Link

Otras preguntas

Find the value of x, if angle x measures 102 degrees
I'm assuming that the correct answer to this problem was a, but I'm not sure why. How do I know when to use sin and when to use cosine when writing the equation
State a conclusion that seems reasonable.You find a nest with 12 eggs in it. The first 5 hatch out to be snakes.Conclusion:
Why is breast cancer still treated with breast cancer specific drugs if it has metastasized?
is it a Square, Rectangle, Parallelogram or RhombusThank You
What is another natural process that could contribute to the evolution of a species’ genomes? How would this process affect evolution?
After the move, Alima had 50 boxes of books (to unpack immediately). What kind of phrase are the( bolded words?) A:verb B:infinitive C:participal D:gerund
Where is the part that will develop into a fruit on a male flower?
Which of the following is a concern about globalization? A. Less jobs in exporting industries B. Higher prices for consumer goods C. Less variety in c
help me fast please