Respuesta :

dasetka
2x + 7y = 2(2x + 10y) - 5x   Use the Distributive Property
2x + 7y = 4x + 20y - 5x        Combine like terms (4x and -5x)
2x + 7y = 20y - x                  Add x to both sides
3x + 7y = 20y                       Subtract 7y from both sides
        3x = 13y                       Divide both sides by 13
        [tex] \frac{3x}{13} [/tex] = y   Switch the sides to make it easier to read
        y = [tex] \frac{3x}{13} [/tex]
Sansacrasial
First thing you'll do is add -20y to both sides...
2x+7y+−20y=−x+20y+−20y
2x−13y=−x
Next, add -2x to both sides...
2x−13y+−2x
=−x+−2x−13y
=−3x
Lastly, divide both sides by -13...
−13y/−13=−3x/−13
Now, your answer is...
[tex]y= \frac{3}{13} x[/tex]

Good luck with your studies, hope this helps~

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