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 ( 57+ )
Otras preguntas
HELP PLEASE I DON'T GET IT!!!!!! Question: If this is one seconds of waves, what is the frequency for this wave?
Melissa's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Melissa $4.35 per pound, and type B coffee costs $5.70 per pou
Plz help me ...A merchant bought a quintal of potatoes for Rs 4,000. He sold all potatoes at Rs 390 per 10 kg. Find his profit or loss. Class 6.Vedanta Excel in
Job #1 pays $42.50 for 5 hours of work. Job #2 pays $136.50 for 13 hours of work. What does Job #1 pay in dollars per hour (to the nearest cent)?
find the value of x , please
Graph the system of equation on graph paper or in your calculator, y=−4/3x+4y=−2/3x−2 Which statements are true about the solution to the system of equations?
Please helppp from edge :) Bodhi has a collection of 175 dimes and nickels. The collection is worth $13.30. Which equation can be used to find n, the number of
what are the different types of qualitative research
What is the circumference of a circle with a radius of 50 feet? Select one: 100π feet 2500π feet 50π feet 25π feet
Hii. Look at the pic plz.
