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 ( 23+ )
Otras preguntas
What must a reading response paper include? A. A bibliography of authors works B. Paraphrase of text C. Thesis and summary D. Illustrations
6w and 8y like termstrue or false
Political parties can receive certain funds from businesses and organizations that are not regulated by the federal election commission. These funds are known a
how did imperialism affect Germany during WW1
The perimeter of a regular polygon is 101.6cm and a side measures 12.7cm. What kind of polygon is it? a) pentagon b) hexagon c) octagon d) decagon
a bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
what happens to the energy of the universe during a chemical or physical process
One of the most famous scenes in all of movie history is Dorothy's skipping off down the yellow brick road from Munchkin City in The Wizard of Oz (1939). In thi
Which sentence uses ellipses correctly for this quotation? A) Dr. King tells his listeners that ". . . This is no time to engage in the luxury of cooling off."
the sine of a angle is 0.500. what is the measure of this angle
