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 ( 89+ )
Otras preguntas
Match the subject pronouns with the rest of the phrases about hobbies. Drag the items on the left to the correct location on the right
What country produces the most cotton in the world? How do they do this?
Which is NOT true about abbreviations? A. Different fields of medicine use the same abbreviations to mean completely different terms. B. Electronic health recor
tried to make England a Catholic country
Marking as brainliest last attempt Do only questions 2 and 3
help v qucik pleaseeeeee
En el cuento del cuchillo de juan bosch cuales son los conectores logicos
To prevent accidental poisoning, you should NOT __________. A. mix chemicals in well ventilated areas B. follow the instructions on the label C. keep materials
How do we find coterminal angles for degrees? Radians?
Use the shell method to write and evaluate the definite integral that represents the volume of the solid generated by revolving the plane region about the y-axi
