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

Read the following idioms and figurative definitions. Match the definitions to its corresponding idiom. Remember, you are looking for what these idioms really m

A sand box has an area of 45 ft. The length is 4 feet longer than the width. What are the dimensions of the sand box? Solve by completing the square

A sand box has an area of 45 ft. The length is 4 feet longer than the width. What are the dimensions of the sand box? Solve by completing the square

what years did the cattle drives take place from

what elements are involved in hydrogen bonding

What did Enlightenment thinkers believe predated society and was superior to the laws of the church or the state?

Express 9.062 as a mixed number in the simplest form.

how do you work out 45.3x6 using grid method

determine a relationship between the x- and y- values. write an equation. x =1 2 3 4 y = 4 5 6 7

What is (7/12)/(5/9)? In simplest form..