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 ( 87+ )
Otras preguntas
if 2^x-4=4a^x-6 what is the value of a
how is mechanical weathering best described A. The buildup of chemical deposits on the surface B. The breakdown of rock through mechanical disintegration and ph
How do the structures of alveoli and capillaries support the function of gas exchange?
Sugar melts at 367°F. What is the melting point of sugar on the Celsius scale?
what is the answer and what does tan a mean
Homosociality reflects children's tendency to prefer social interactions with
Read each verbal expression Then assign a variable and distribute
What did president wilson's wife make sure was on the white house lawn?
PLEASE HELP!!!!!!!! Which of the following is a continuous random variable? A) the number of employees in an office B) the salaries of employees in an off
Many assume that presidents with high __________ are more effective leaders.
