jdhdh3h jdhdh3h

21-10-2017
Mathematics

contestada

please help me answer this using systems of equations with elimination.

please help me answer this using systems of equations with elimination class=

Respuesta :

anthony12341 anthony12341

24-10-2017

-5x+13y=-7
5x+4y=24
add the equation to eliminate x:
13y+4y=-7+24
17y=17
solve for y:
17/17y=17/17
y=1
then plug in y into any equation to solve for x:
-5x+13y=-7, y=1
-5x+(13*1)=-7
-5x+13-13=-7-13
-5x=-20
-5/-5x=-20/-5
x=4
the answers are x=4, y=1

Answer Link

Otras preguntas

_______ is the use of sound waves to detect and measure objects underwater. A. OSTM B. Sonar C. GIS D. GPS This is actually earth science. Sorry.

Write this expression using exponents: 5 × 5 × 5 × 5 a. 52 b. 5 × 4 c. 54 d. 45

The north vietnam army was called the army of the republic of vietnam. true false

A 2.0-kg mass and a 3.0-kg mass are on a horizontal frictionless surface, connected by a massless spring with spring constant k = 140 N/m. A 15-N force is appli

In your own words, explain the impact of unfavorable oceanic conditions on human behavior.

Which is the biological definition of a species

Which term is defined as "two noncollinear rays that share a common endpoint"? A.) angle B.) segment C.) vertex D.) plane

In the 1760s, Britain imposed a series of taxes on its American colonies. In response, the colonists

Find the balance in the account. $1,400 principal earning 6%, compounded semi-annually, after 10 years

tell how you know that a system of two linear equations has more than one solution. how many solutions will such a system have? justify your answer