fabiola6 fabiola6

08-12-2016
Mathematics

contestada

how to solve 3 variable systems

Respuesta :

Аноним Аноним

08-12-2016

Pick two pairs: 4x - 3y + z = - 10. 2x + y + 3z = 0. ... Eliminate the same variable from each system: 4x - 3y + z = - 10. 2x + y + 3z = 0. ... Solve the system of the two new equations: -5y - 5z = - 10. 5y - 7z = 34. ... Substitute into one of the original equations: - x + 2y - 5z = 17. ... Check: Does 2(1) + 4 + 3(- 2) = 0 ? Yes.

Answer Link

Otras preguntas

The selling price of a refrigerator, is 459.90 if the markup is 5% of the dealers cost, what is the dealers cost of the refrigerator

What times what equals -72 but also adds up to -1. Factor quadratic expressions

What did people do to protest in the Albany movement? give 6 examples.

Macrosociology and microsociology seem to make very different assumptions about how society works. How does sociology, as a discipline, deal with these two very

The founders of Life is Good started their business by hawking t-shirts on the street and selling them door to door in college towns. As the organization grew

A computer is priced at $400 this year, and will be sold at 90% of its original value next year. What is next year's price for the computer?

Thomas consumes coffee ( C) and doughnuts ( D). His budget line was described by the equation D = 20 - 2 C. At a later time, his budget line could be described

Which equation is the inverse of y = x2 – 36?

A rocket accelerates upward from rest at a rate of 5 m/s^2. At a height of 1000m, the engines burn out and it coasts the rest of the way with an acceleration of

Add or subtract. Write fractions in simplest form. 4 2/5 - (- 6 1/2)=