2livee
2livee
02-11-2017
Mathematics
contestada
Solve equations with 3 variables
Respuesta :
tynollette
tynollette
02-11-2017
add up equation 1 and 2 to eliminate b
(a+b)+(-b+c)=3+3 => a+c=6
subtract this new equation from the third equation:
(a+2c)-(a+c)=10-3 =>c=4
plug in c=4 in a+c=6 =>a=2
a+b=3, a=2 =>b=1
Answer Link
VER TODAS LAS RESPUESTAS ( 55+ )
Otras preguntas
Which sentence uses a verb that agrees with its subject?A.In a dark corner of the attic were many unopened boxes.B.Across the surface of the water glides swans.
The traits of populations in the forest ecosystem have changed over time. What caused the traits to change?
which state capital is north of 40 degrees north latitude: Frankfort, denver, salt lake city, or columbus?
There are 5 red balls,6 white balls and 7 green balls in a box.If one ball is taken without looking,what is the probability that it is white?
Calculate the speed of a 3.5cm sound wave of frequency 8000Hz
There are 5 red balls,6 white balls and 7 green balls in a box.If one ball is taken without looking,what is the probability that it is white?
What substance is made during transcription and where does it occur
An element with mass 1000 grams decays by 14.8% per minute. How much of the element is remaining after 11 minutes, to the nearest 10th of a gram?
What are the possible values for x in the equation 4x^2 = 64(1) x=0 (2) x=4 (3) x=4,-4 (4) x=0,4,-4
What substance is made during transcription and where does it occur
