mikaylafeist mikaylafeist

01-12-2016
Mathematics

contestada

Which ordered pair is the solution to the system?
x+5y=−3
2x+7y=3

A.(12, −3)
B.(−13, 2)
C.(−2, 1)
D.(22, −5)

Respuesta :

wizard123 wizard123

01-12-2016

For this one you want to cancel out the x-terms.
Multiply top equation by -2

---> -2x -10y = 6
---> 2x +7y = 3

Add them together

---> -3y = 9

Solve for y ...

Answer Link

Otras preguntas

Which of the following risk factors has the most immediate impact on a persons health A) eating too much junk food B) not excersing for 30 minutes a day C) no

Jerry had $740 in the savings account at 5% interest the money is in the account for 1/4 year how much interest did he receive?suppose he withdrew the principal

Convert the following quadratics from standard form to vertex form

Her brother loves to bike,swim,and the movies . How should the parallel structure should be changed?

what is the common denominator of 3/5 and 2/8

Barkly Doghouses charge 50$per square meter for their doghouses. Complete the table to show this is a porptional relationship

In what way did the Renaissance affect European society? A. Society became more religious. B. Society became more traditional. C. Society became more

Although you can see the pencil, it appears broken in the glass of water. This is because A) electromagnetic waves cannot travel through solids. B) electromagn

Can someone help me fill the blanks?

what is 1/10+5/6 write in simplest form