roseiy
roseiy
06-03-2017
Mathematics
contestada
2x - 7y = 13
3x + y = 8
Respuesta :
wolf1728
wolf1728
06-03-2017
A) 2x - 7y = 13
B) 3x + y = 8
Multiplying equation B by 7
B) 21x + 7y = 56 then adding it to A
A) 2x - 7y = 13
23x = 69
x = 3
y = -1
Answer Link
VER TODAS LAS RESPUESTAS ( 81+ )
Otras preguntas
how is cytokinesis in a plant similar to cytokinesis in animal cells? how is it?
After a large snowstorm, you shovel 2,500 kilograms of snow off of your sidewalk in half an hour. You lift the shovel to an average height of 1.5 meters while y
Television screen sizes are the diagonal length of the rectangular screen. Hector recently changed from watching a television with a 13-inch screen to a televis
Calculate the molar mass FeCl3 Fe2(SO4)3 PbO PbO2 Pb3O4
Which statement best describes Richard Nixon’s attitude toward Watergate? (A) He did not believe that wiretapping the Democratic National Headquarters and tryin
What was significant about the fossils Darwin found?
How do you say I'm not rich in French
Two dogs pull on a toy. One pulls with a force of 10N, the other with a force of 15N. In what relative directions can the dogs act to give the toy the smallest
Which statement best describes Richard Nixon’s attitude toward Watergate? (A) He did not believe that wiretapping the Democratic National Headquarters and tryin
What is k+3 3/4 = 5 2/3 - 1 1/3
