Ash0405
Ash0405
02-02-2015
Mathematics
contestada
Solve by substitution
X+3y=1 and -3x-3y=-15
Respuesta :
Аноним
Аноним
02-02-2015
[tex]x+3y=1\\ -3x-3y=-15\\ add\quad the\quad equ.\\ (x+3y)+(-3x-3y)=1-15\\ x-3x+3y-3y=-14\\ -2x=-14\\ x=\frac { -14 }{ -2 } \\ x=7\\ Let's\quad rewrite\quad the\quad equ.\\ 7+3y=1\\ 3y=1-7\\ 3y=-6\\ y=\frac { -6 }{ 3 } \\ y=-2[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 63+ )
Otras preguntas
A town is holding a competition for various athletic games. Each community has 14 players. There are 112 communities competing in the games. How many players ar
if the length of a rectangle is 6m longer than its width, what is the area if the perimeter is 44m
combine like terms: 2+7(-2+7x)
And the last question is: The sum of two consecutive integers is at least 14. What is the least possible pair of integers? A) 4 and 5 B) g and 7 C) 7 and 8 D) 8
Can someone help me
What type of image is formed by a lens if m = -1.6?
The main show tank has a radius of 70 feet and forms a quarter sphere what is the volume of the quarter sphere shaped tank?
Aubree had 30 apples.kennyell gave her 50 MORE apples. How many apples does Aubree have left?
Quotes in Trevor Noah that illustrate his sense of humor and explain.
please please help me
