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 ( 31+ )
Otras preguntas
What is the answer for 9-0-5-(-20)+(-13)?
4. 7G4 - M Kylie used wire fencing to form a border around a circular region in her back yard. If the diameter of the circular region was 5 yards, what was the
Estimate the quantity of soil to be excavated from the borrow pit
Please help me 75Kg of grapes are equally distributed to 6 children. How many grapes does each child get?
Find an equivalent system of equations for the following system: 3x + 3y = 0 −4x + 4y = −8 3x + 3y = 0 7x − y = 8 3x + 3y = 0 −7x − y = 8 3x + 3y = 0 −7x + 7
Solve for x4d+3/8=-2
Plz help me i dont know what to do
Flight times for commuter planes are normally distributed, with a mean time of 94 minutes and a standard deviation of 7 minutes. Using the empirical rule, appro
7 minus the product of v and 3
Countries engage in proxy wars in order to: A. Push rival countries to drop out of long term arms race. B.protect their weaker allies from potential destructive
