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

a high school student refuses to participate in the pledge of allegiance at the beginning of the school day. a teacher screams at the student and says that the

Select all that apply. Which statements accurately describe the culture or geography of Latin America? Choose all answers that are correct. A. Latin America st

What is the charge of the nucleus of an oxygen atom?(1) 0 (2) -2 (3) +8 (4) +16

Ecrivez les phrases suivantes au passé compose Question: le lion rugit ferocement

To break a chemical bond, energy must be(1) absorbed (2) destroyed (3) produced (4) released

what is the value of x for the graph 4x-5y=40

What is the half-life of a radioisotope if 25.0 grams of an original 200.-gram sample of the isotope remains unchanged after 11.46 days? (1) 2.87 d (3) 11.46 d

Which sentence uses commas correctly? A. Please deliver the signed application to 1417 Corporate Boulevard, Baltimore, Maryland, by Monday, March 12. B. We will

-3x-3y=3 5x+y=-17 What is the answer ?

How do you say "the feather pen" in French?