Kenna427 Kenna427

12-01-2015
Mathematics

contestada

What is (x,y) if y+2x=3 and y-x=-9

Respuesta :

apologiabiology apologiabiology

12-01-2015

so use subsituteion

make y-x=-9

change it to subsitute
y-x=-9
add x to both sides
y=x-9

susitute x-9 for y in y+2x=3
x-9+2x=3
3x-9=3
add 9 both sides
3x=12
divide both sides by 3
x=4

subsitute
y=x-9
y=4-9
y=-5

x=4
y=-5
(4,-5)

Answer Link

Otras preguntas

Question 3: 12 pts A box has 26 pens —6 red, 8 green, 5 blue, and 7 black. Sam picks two pens at a time without replacement. What is the probability that Sam pi

Why did France see North America as an important part of their growing mercantile empire? A. The abundance of recourses B. The abundance of labor C. The close

Heat is being transferred from the bottom of a saucepan of soup, to the top. Once convection begins, the temperature of the soup increases by 10 degrees Celsius

PLEASE HELP ME ASAP!!!!!!!!!!!!!!!!! Use the sequence 10,−2, 2/5, −2/25,… for questions 4-6 . 4. Find the next three terms in the sequence. 5. Find an equation

Many of us live in town, suburbs , or cities were buildings, parking lots, and streets cover much of the land. On a scale of 1 to 10, one being the worst and 10

Find the perimeter, in units, of quadrilateral ABCD with vertices A = (1,1), B = (4,4), C = (7,1), D = (4,-2).

the first americans crossed what to get here?

< Which of the following descriptions of life in Mesoamerica during the 1600s is evidence that the Columbian Exchange transformed the lives of Native America

What is the image of (0,-8)(0,−8) after a reflection over the line y=xy=x?

if the percent yield is equal to 100%, then