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 ( 81+ )
Otras preguntas
Manny does not eat 4/9 of his orange at lunch. Josh does not 5/9 of his orange at lunch. How much orange do Manny and Josh have left over?
which trig ratio determine which trig ratio to use to solve for x
a circle is placed in a square with a side length of 6yd, as shown below. Find the area of the shaded region. Use the value 3.14 for (), and do not round your a
5. Select the word needed to complete the meaning of this Spanish sentence. Elena tiene dos amigas de Colombia. a las Nothing is needed. Leave it empty. les
use the intersect method to solve the equation -2x+1=-x^2+4
To travel at a constant speed, a car engine provides 24 KW of useful power. The driving force on the car is 600 N. At what speed does it travel?
In exercises, 4 and 5, find the unknown or marked angles.
Dont undersrand this at allll...
AYUDENMEEE POR FAVOR
help please thank you
