tweety1 tweety1

02-02-2015
Mathematics

contestada

x+y=10 x-y=20 how do you solving systems of equations with elimination

Respuesta :

konrad509 konrad509

02-02-2015

[tex]x+y=10\\ \underline{x-y=20}\\ 2x=30\\ x=15\\\\ 15+y=10\\ y=-5\\\\ \boxed{(x,y)=(15,-5)}[/tex]

Answer Link

Otras preguntas

the parks department is monitoring level of a lake the change in water level of the lake is modeled by a third degree polynomial function P(x)A) what do the x-v

Solve for x, 0 ≤ x ≤ 360. 1/sin^2 x = 4 A. 30 B. 150 C. 210 D. 330 You can choose more than one !

Explain how ratios can be written as a fraction. Which value is the numerator and which is the denominator of the fraction? Give an example.

Which of these BEST describes the concept of American Exceptionalism? "The United States __________." has the best military should export its beliefs is immune

What volume of nitrogen dioxide is produced from the complete reaction of 16.87g of lead at STP? 2Pb(NO3)——> 2PbO(s)+4NO2(g)+O2(g)

What is an example of an absorbent powder calcium carbonate Kaopectate magnesium and aluminum salts or Esomeprazole. I already tried calcium carbonate and tha

Mi agente de viajes sugiere que yo _____ mi dinero en efectivo en diferentes bolsillos. Question 17 options: pongo pongas ponga pone

I want to get better at Spanish. How should I? I am in Spanish 4 in high school and can comprehend many things, but I want to learn how to understand and verbal

Photosynthesis can be described as the process that ?

how many 1/8 pound patties can you make from 7/8 of a pound of hamburger