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 ( 27+ )
Otras preguntas
the main reason suppliers can offer quantity discounts is that,shipping and handling costs per unit are reduced when customers buy in larger quantities?
84 divided by a number z
if a factory makes 2 quarts of ice cream in 2 minutes how many can they make in 20 minutes
Coral reefs are unaffected by pollution. true or false
What is an angle that measures 1/2 turn
Which one of the following statements is accurate? A. Electron microscopes focus beams of light using magnetic fields. B. Compound light microscopes utilize le
The _____ biome is the driest. Common floras are cacti, and faunas are snakes and lizards.
Compare and contrast mechanical transverse waves and longitudinal waves
what is the figurative language for He kept his eyes on the rocky peaks t jutted into the sky like jagged sharks teeth
To gain admission to college, which test should a high school student prepare to take?
