amberm9859 amberm9859

07-01-2018
Mathematics

contestada

If x + 5y = -11 and 2x − 3y = 17, what is the value of x + y?

Respuesta :

WNY9976 WNY9976

07-01-2018

x+5y=-11 (1)
2x-3y=17 (2)

2(1)-(2)
2x+10y-2x+3y=-22-17
13y=-39
y=-3

Sub y=-3 in (1)
x+5(-3)=-11
x=4

So x+y= -3+4 =1

Answer Link

Otras preguntas

A primary school had 1200 students enrolled in 2013 and 1500 students in 2016.if the students population grows as a linear function of time t,where t is the num

mga wikang HINDU na hiniram nang pilipinas at ginagamit hangang ngayonrespect post need lang

Examine how the performance of a school or college might impact on any two of its stakeholder groups. [6 marks]

Por que tienen ustedes que estudiar? (Nosotros) _______ que estudi__ porque manana ______ a ten____ un examen. (Fill in the blanks) This is for my spanish 1 stu

A low-lying area razed (all vegetation removed) and filled to raise it’s elevation, and a new housing development is constructed on this new fill. What king of

SOMEONE PLEASE HELP MEE

When Camila says “I am better than Joe at arithmetic but not as good as Isabel at reading,” she is carrying out ______

Watchmen by Alan Moore: Which Archetype describes Skill Specter? Use specific evidence from the book to support your argument. Note what the character says, th

I NEED HELP ASAP PLEASE AND THANKS

A sample of a radioactive isotope had an initial mass of 550 mg in the year 2009 and decays exponentially over time. A measurement in the year 2015 found that t