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 ( 11+ )
Otras preguntas
Solve equation using square root property X2-8X+16=1
2+3=8, 3+7=27, 4+5=32, 5+8=60, 6+7=72, 7+8=???????? SOLVE IT IF YOU CAN
1.Which sentence contains an adjective clause? A. Pizza, which many people love, can also be nutritious. B.Thin-crust pizza with low-fat cheese has fewer ca
A restaurant has two pastry ovens. When both ovens are used, it takes about 3 hours to bake the bread needed for one day. When only the large oven is used, it t
Clarence brought 5 rolls of color film and 4 rolls of black - and - white film for his camera for a total of $24.00. The black - and - white cost $1.50 per roll
How would I find the slope intercept form of x+y+3=0?
I would like to know if 2 kg is greater or less then 1500 g
what is the ordered pair solution for;x + 2y = 53x - y = 1
What is the sales rate for 5% of $50
Aqueous solutions of this ion give a reddish precipitate when excess hydroxide ion is added. (A) Cu^{2+} (B) CO₃^{2−} (C) Fe^{3+} (D) Al^{3+} (E) Pb^{2+}
