kit0058
kit0058
02-03-2017
Mathematics
contestada
solve by elimination
Respuesta :
roseberline
roseberline
02-03-2017
2x - 2y = -4
-3x -3y = 0
_____________________
-1x - 5y = -4
Answer Link
H1a2r3s4h5
H1a2r3s4h5
02-03-2017
2x-2y=-4
Multiply eq.by 3
6x-6y=-12
-3x-3y=0
Multiply eq.by 2
-6x-6y=0
from both new eq.
6x-6y=-12
-6x-6y=0
So adding both eq. We get
-12y=-12
So y=1
From eq.1
2x-2y=-4
2x-2(1)=-4
2x-2=-4
2x=-4+2
2x=-2
x=-1
so x=-1 and y=1
Answer Link
VER TODAS LAS RESPUESTAS ( 48+ )
Otras preguntas
What is the name of the document that attempted to end conflict in the colonies peacefully?
order the intergers from least to graestest 6 16 -8 -5
Which equation represents a circle with a center at -3,-5 and a radius of 5
?Cómo se dice "thunder" en espa?ol? la tormenta el huracán los relámpagos los truenos
Which distance zone would be appropriate for the scenario below? Company president Susan Polawski addresses members of the board in her annual report. A. Intima
PLZ HELP LAST QUESTION WILL MARK BRAINLYEST JUST PLZ HELP SOME ONE Which of the following is a unit of volume in the English system of measurement? A:Meter
Describe Michelangelo’s early years and his beginnings in art
Which trait is used to evaluate the writer’s awareness of audience? A. sentence fluency B. conventions C. organization D. voice
What was one of Stalin's major goals in eastern Europe after ww2
Which of the following equilibria will shift toward formation of more products if the volume of a reaction mixture at equilibrium increases by a factor of 2? a.
