ria3545
ria3545
04-02-2021
Mathematics
contestada
solve the simultaneous equations
2x+3y=13
4x-y=-2
Respuesta :
assvecca
assvecca
04-02-2021
from eq1 ,
2x = 13-3y
x = 6.5-1.5y (eq 3)
sub eq 3 into eq2,
4(6.5-1.5y)-y=-2
26-6y-y=-2
-6y-y=-2-26
-7y=-28
7y=28
y=4 ( eq 4 )
sub eq4 into eq3 ,
x=6.5-1.5(4)
x=6.5-6
x=0.5
Answer Link
VER TODAS LAS RESPUESTAS ( 27+ )
Otras preguntas
amy wants to carpet a room that is 12 feet by 8 feet. how many square yards of carpet will she need to complete the room?
(3x^2 + 2x -2) + ( -2x^2 + 5x+5) My answer 5x^2 + 7× +7 Am i right
if a star is shown ti be 33.11 trillion killometers away , how many light year would that be
PLEASE HELP I GIVE THANKS
HELPPPPP 35% OF GRADEEEEE.... When John bought his new computer, he purchased an online computer help service. The help service has a yearly fee of $25.50 and a
a summary about concussions
What Role Does the Sun Play in Producing Winds And Ocean Currents
In which sentence does the prepositional phrase act as an adverb? A. Last evening, Anne suffered from a headache. B. The door to the attic was left open. C. Mr
On a map, the distance between two cities is 7.3 centimeters. The map scale is 1 cm:50 km. What is the actual distance between the two cities?
does radiation need a phase of matter to travel with?
