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 ( 29+ )
Otras preguntas
Bonjour, I need help again do exercise 10- PARLEZ DE VOUS(photo) Thank you :)
If you look at a faraway street sign with first your left eye and then your right eye, the images look virtually identical. But if you look at your finger held
What is the biome represented in the climatogram? Multiple choice.
Indicate where the students are going and an activity they might do there, (in french).
For what value of x is the parallelogram a rhombus. PLEASE HELP!! WILL MARK BRAINLIEST!!
What is the probability of flipping a coin 7 times and getting heads 6 times? Round your answer to the nearest tenth of a percent. A. 0.8% B. 27.3% C. 16.4% D.
1. The magnitude of the electrostatic force a charge particle exerts on a 5.0nC particle 0.20m away from it is 18N. Find the magnitude of the force it exerts on
Who is Per Yngve Ohlin? Why is he important, and what are your opinions on him. Brainliest and 50 points
What is the equation of this trend line?Enter your answers by filling in the boxes.K = _ J + _
do not put it in decimal or fraction form please, please no link
