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

What is disadvantage of a Mercator projection .1it does not include all of the continents.2.it does not show many detail of earth surface.3. It too large to be

What is 0.001012, 123, & 1.52 in scientific notation

Under the leadership of Lucretia Mott and Elizabeth Cady Stanton, the high point of the Seneca Falls convention was the drafting of the Declaration of?

Which words in the sentence make up the appositive? Which word does the appositive rename? Many letters of support were sent to the candidate Jack Candless. A.

what was an effect of Magna Carta In England ?

What automobile manufacturer was born on Christmas Day 1878?

When Rhodesia became the nation of Zimbabwe, its economy was damaged by a. U.N. sanctions. c. power struggles between radical leaders. b. drought. d. all of the

the coefficients in a balanced chemical equation represent

Solve the equation 4.8y-6.9=3.18 Explain your thinking

What events are most likely to occur along a transform boundary? A. deep-sea trenches B. rugged mountain ranges C. earthquakes D. hot spots