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 ( 32+ )
Otras preguntas
-x-5y=22&y=-7x+16 solve the system by the substitution method
Whose point of view is shown in "The Players"? the players, the classmates, and the bully the players, the classmates, and the teacher the classmates, the bu
What was the Supreme Court's ruling in West Virginia Board of Education v. Barnette?
The atom shown down above isA. Likely to form a convalent bondB. Likely to form a ionic bondC. Not likely to form any bondsD. Likely to form double bonds
Use t = 3 and t = 7 to determine if 6t + 12 and 6(t + 2) are equivalent. Which statements are true? Check all that apply.
Where is this question most likely taking place?
I need help I don’t get this
The Three Domain system consists of which of the following?
Shandra has already written 16 pages of her research paper and she expects to write an additional 5 pages per hour. How many total pages, y, would she have wor
Which of the quadratics has a graph with x-intercepts of 5 and -1?
