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 ( 69+ )
Otras preguntas
Which statement best describes Dickon's character in The Secret Garden? Dickon is a round, dynamic character because he has a simple personality and is used by
Reasons why each one of those don't belong
The blue dot is at what value on the number line?
Review the underlined sentence on page 2. What idea does Kennedy’s repetition of the wording ""not to our . . . but to our . . ."" emphasize?
I NEED THIS ASAP!!!This image shows a volcanic eruption in Hawaii with lava flowing into the sea. Which statement best describes this eruption?A. Its magma is h
is christopher columbus guilty of genocide
true or false, first amendment rules don't apply to private companies.
lead has a density of 11.35g/cm'3. a lead ball weighs about 2kg. what is the radius of this ball
In mammals, which of the following substances is produced in a muscle that operates anaerobically? Acetyl COA Citrate NADPH Lactate Oxygen
How does energy from the Sun travel to Earth? through radiation through convection through conduction through the movement of particles
