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

tear down this wall speech. what was the cause of the Soviet Union losing its grip on its empire?

Answer this easy question.

Where is the best place to buy a car? (Like a low price but good car) And why does it have to be so difficult? I'm crying right now from the stress of it.

please help quickly !!!!

The student council at Clarksville High School is making T-shirts to sell for a fundraiser, at a price of $10 apiece. The costs, meanwhile, are $8 per shirt, pl

The 14th and 15th Amendments, passed during Reconstruction,resulted inSelect one:O equal rights for women in the United Statesexpanded rights for Native America

Millard Fillmore was president of the United States in the mid-nineteenth century. a. run-on sentence c. compound sentence b. sentence fra

A ball is dropped from 16 feet above a hard surface. After each time it hits the surface, it rebounds to a height that is 3/4 of its previous maximum height. Wh

Can you help solve each question I answered incorrectly

7) Five thousand dollars is invested at an interest rate of 3.5% compounded quarterly. No money is deposited or withdrawn from the account. Using the formula be