Quadgirl2019 Quadgirl2019

13-11-2018
Mathematics

contestada

find the solution of this system of equations -2x+8y=14 and -2x-2y=-26

Respuesta :

Аноним Аноним

13-11-2018

Note that both equations contain -2x so if we subtract them this will disappear.

-2x + 8y = 14

-2x - 2y = -26 Subtract:-

0 + 10y = 40

y = 4

Substitute fro y in the first equation:-

-2x + 8(4) = 14

-2x = 14 - 32 = -18

x = 9

Answer x = 9 y = 4

Answer Link

Otras preguntas

If you were to conduct a research project investigating the relationship between the brands and shapes of gummy candy available in American convenience stores,

If f = { 425162738 6)}, then the range of f is

What are the differences between Parasympathetic nervous system and sympathetic nervous system

Alex wants to buy a computer priced at $640. If sales tax is 8%, what is the total cost of the computer?

To show or hide the access keys in your menu bar, press the ______ key(s) on your keyboard. To size a form using the keyboard, you can select the form and press

In what order are the feature, advantage, and benefit presented in the following statement? "This television's solid-state design produces a more vivid picture

Students mailed invitations to a play to 414 parents. Each student mailed (18 invitations. If s equals the number of Students who mailed invitations, which equa

An element with mass 780 g decays by 17. 1% Per minute. How much of the element is remaining after 19 minutes, to the nearest 10th of a gram?

Typically, a comedy is a play focused on ordinary people, in sad situations. true or false

0.75 is 75% of what number