maryfitzgerald2019
maryfitzgerald2019
03-02-2017
Mathematics
contestada
3x + 3y = –9
3x – 3y = 21
Respuesta :
yashddsy26
yashddsy26
03-02-2017
so solving by addition !
6x= 12
x= 2
and y = -5
Answer Link
juanny1818
juanny1818
03-02-2017
3x+3y=-9
Add -3y to both sides.
3x
+
3y
+
−
3y
=
−9
+
−
3y
3x
=
−
3y
−
9
you can divide
3x/3= -3y-9/3
x= -y-3
3x-3y=21
x=y+7
Answer Link
VER TODAS LAS RESPUESTAS ( 89+ )
Otras preguntas
According to the essay, "I Just Couldn't Put It Down!" , what does the plot of a story mainly do? A. Provides details about events that happened in the past. B.
what are 3 major events that occured in 1922 ?
What times what equals 24 and sums to 11
11 billion in scientific notation
7. Jackie wants to buy a new CD player It costs She has saved and has a coupon for off the Does Jackie have enough money to buy the CD player
Which expression tepresents "the quotient of 10 and 2, plus 3"?
Jake wrote this equation for the area of a rectangle. 431.2 = 24.5w. What is the width (w) of this rectangle? A. 17.6 units B. 67.7 units C. 406.
Ellos compraron "el reloj pulsera" Which sentence correctly substitues the bolded phrase? A. Ellos lo compraron B.Ellos la compraron C.Ellos los compraron D.Ell
40/100= _ of_ Equal parts and the decimal _
Cities and civilizations are recent inventions. True or False
