yessy2004
yessy2004
02-11-2019
Mathematics
contestada
3(x+y)=7(y-x), 5(3x-y)=x+3
Respuesta :
dsabbide
dsabbide
02-11-2019
Answer:
i am not sure thi sis the first one
Answer Link
juju739
juju739
02-11-2019
3(x+y) = 7(y-x)
3x+3y = 7y-7x
3x+7x +3y -7y = 0
10x - 5y = 0 —> *7
70x-35y = 0
5(3x-y)=x+3
15x-y =x+3
15x-x-y = 3
14x -y = 3 —>*5
70x-5y =15
70x-70x-5y-(-35y) = 15
30y = 15
y = 1/2
-2.5 +10x = 0
10x = 2.5
x = 0.25
Answer Link
VER TODAS LAS RESPUESTAS ( 67+ )
Otras preguntas
will someone help me?
WILL MARK BRAINLIEST!!!!Max and Maggie have to clean the house. It takes Max 12 hours to clean the house, while Maggie can complete the task in 4 hours. Their s
Which term best describes an organism that can contain up to five levels of organization to carry out life like functions
why do you think common sense was so popular
Find the missing coefficient (5d - 7)(5d - 6) = 25d2 + what d + 42
area of rectangle with diagonal of 5 in but length not given
simplify 5x – 12y + 8x + 2x2 + 4x2
i__a teacher in a language school in Bath. I__married and I have two children. My brother _____a doctor in the hospital in the city. he____25 and he____(not) ma
How big is the specific ocean?
What does the title "Mahatma" mean? A. the leader B. the great soul C. the all knowing D. the religious one
