Tarrants156
Tarrants156
15-07-2014
Mathematics
contestada
Help please 2y-5x=-1, x=2y+5
Respuesta :
Аноним
Аноним
15-07-2014
[tex]\left\{\begin{array}{ccc}2y-5x=-1\\x=2y+5\end{array}\right\\\\substitute\\\\2y-5(2y+5)=-1\\2y-10y-25=-1\\-8y=-1+25\\-8y=24\ \ \ \ /:(-8)\\y=-3\\\\x=2\cdot(-3)+5=-6+5=-1\\\\Solution:x=-1;\ y=-3[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 35+ )
Otras preguntas
On April 1, 10,000 shares of $20 par common stock were issued at $24. Required: Illustrate the effects on the accounts and the financial statements.
complete the solution of the equation. find the value of y when x equals 7. 2x + y=24
Which variable in a person with coronary artery disease (CAD) increases the likelihood of a strong genetic influence in its expression
identify the range of the function shown in the graph
need answer asap helpppp!!!
Define like and unlike forces
Image attached. Geometry: finding angles
heeelp please! History class yo what extent did Yellow Journalism lead to war with spain? What benefit did the newspaper owners gain from the war? How has jou
If x = 6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation?
In a test of the effectiveness of garlic for lowering cholesterol, 47 subjects were treated with garlic in a processed tablet form. Cholesterol levels were mea
