Sam1300 Sam1300

02-03-2015
Mathematics

contestada

X+3y=5
-2x-6y=-10

Solve using elimination

Respuesta :

apologiabiology apologiabiology

02-03-2015

slimination
multiply first equaiton by 2
2x+6y=10
add to second equiaotn
2x-2x+6y-6y=10-10
0=0
this is true so therfor they are the same equaiton

so solve
x+3y=5
3y=-x+5
y=-1/3x+5/3

subsituter values for x and get valuse for y

if x=2 then y=1

Answer Link

Otras preguntas

If f(x) =2−x/3−x^2, then determine f(−1)

Expand the following :A) 2(x+3)B) 5(2x-4)C) 4(2x+1)D) 6(x-4y)

Need help asap. Alebra 1 Thanks so much to whoever answers

One of the themes of Renaissance art is realism or a place of being. How would this be conveyed in the art of this period? Select one: a.man is seen has having

Can you help with all label them by there numbers plz thank you

Which statement describes the translation from the graph y=|x| to the graph y=|x+3|-4? A) shift 3 units left and 4 units up B) shift 3 units left and 4 units d

Underline the word in each sentence that contains a Greek or Latin suffix. Carter's team studied methods of soil management. Carver freed the south from it's de

Rosita wants to have healthy peer relationships. Which action would best help Rosita achieve this goal?

what is the role of heat in the formation of new rocks

whats the worst word you can say without getting slapped by your mom?