egmoccer6yai egmoccer6yai

11-08-2016
Mathematics

contestada

what is the solution to the system of equations? x-y=7 3x-2y=8

Respuesta :

Ckaranja Ckaranja

13-08-2016

x-y=7
3x-2y=8
Multiplying equation I by 2;
2x-2y=14
3x-2y=8
Subtracting equation 1 from equation II;
x=-6
Replacing for x in equation II
3(-6)-2y=8
-18-2y=8
2y=-18-8
2y=-26
y=-13

Answer Link

Otras preguntas

The difference between the method of reproduction for viruses compared to cells.

In year 9, there are 150 students. 16% of the students are left handed. (a) Work out how many students are left handed..

What were 3 specific goals of the women's rights movement?

one year ago, westco company issued 10-year bonds at a coupon rate of 8.3 percent. the bonds make semiannual payments and have a par value of $1,000. if the yie

Free responses in statistics

mrs. thompson passes away. she is a long-time member of the local episcopal church. you are unfamiliar with the specifics of the church, but you locate the rect

Pleaseee help me out If\(\triangle XYZ\sim\triangle EDFV), the measure of angle F is

What is the measure of angle LMN?

In addition to protecting your health, explain reasons you should not use any form of tobacco.

How do the opening words of the earth on Turtle's Back identify it as an origin myth?