sarahlamar382
sarahlamar382
03-12-2014
Mathematics
contestada
3x+4y=2 4x-4y=12 by using elimination
Respuesta :
lakwan007
lakwan007
03-12-2014
(+3x+4y=2)
(+4x-4y=12)
-----------------
7x = 14
-----------------
7
X=2
3(2)+4y=2
6+4y=2
4y=-4
Y=-1.
Or you can plug x into the other equation.
4(2)-4y=12
8-4y=12
-4y=4
Y=-1.
Answer Link
VER TODAS LAS RESPUESTAS ( 39+ )
Otras preguntas
Ken went to a country fair and spent $5 on admission, $6. 50 on games, and $7. 21 on food. If he had $30 before he went to the fair, how much money does he have
a radioactive sample contains 10,000 atoms. after two half-lives, how many atoms remain undecayed? a radioactive sample contains 10,000 atoms. after two half-li
guys give credits to jeonjungkook123 BTW im putting this on maths so i could get people attention who wants 23 points for free
the graph of f(x)=|x-h|+k contains the points (-6,-2) and (0,-2). the graph has a vertex at (h,-5). descrie how to find the value of h. then, explain how this v
In a shop the total cost of two shirts and a trouser is Rs 3491.96 if the cost of a shirt is Rs 2006.99 less than the cost of trouser then what is the cost of a
guys give credits to jeonjungkook123 BTW im putting this on maths so i could get people attention who wants 23 points for free
a bicycle and its rider together have a mass of 80 kg. if the bicycle's speed is 6m/s, how much force is needed to bring it to a stop in 4 seconds.
A chemist decides that she wants an increased amount of product from an endothermic reaction. Which of the following methods would guarantee that she would achi
There are 30 cans of soda in the refrigerator. The table shows how many cans there are of each type. If you reach in and pull out one can of soda, what is the p
Frank finds 9 coins on the floor of his car, and 3 of them are quarters. If he finds 15 more coins on the ground, at the same ratio as the coins found in the ca
