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 ( 95+ )
Otras preguntas
Is it apparent that the hammurabi code is the product of a civilization?
Monosaccharides are also known as what
An inactive student wants to become more physically active but does not think he has the time. What is the most effective thing he can do to start making physic
Which statement best expresses the message the cartoonist was trying to convey ? A.germany was in strong a strong position in its negotiations with France. B.ge
Drawings done with ink thinned with water and executed with a brush are referred to as
rename the fraction 1/4 with a denominator that is a power of 10
In at least 150 words, identify and describe the irony in Wangero’s request to have the quilts that had been pieced by Grandma Dee and Big Dee.
Which of the following describes a similarity between all four of the major British colonial regions of North America? a.Religion was the central focus of socia
Why was Legalism created?
what is one of the values revealed throgh the indian epics
