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 ( 68+ )
Otras preguntas
The temperature, t, in degrees Fahrenheit, can be found by counting the number of cricket chirps, c, heard in 14 seconds and then adding 40. The equation t = c
which of the following equations has the steepest slope? A. y=4x+9 B. y=1/2x+3 C. y=2x+12 D. y=5x-6
Where does Ivan Jakovlevitch find Major Kovaloff's nose?
Triangle LMN is congruent to triangle HIJ. Angle L measures 35 angle M measures 65 and angle J measures 2x degrees. Find the value of x.
Which is an element of internal monologue in Modernist writing?
Are they still teaching in school that columbus discovered america
_____ contributed to the fall of Rome, as money lost value and bartering became necessary.
Make each noun singular possessivegirl_____heart______Emily______
India changed its policy of sterilizing people to control population in 1996, primarily because the policy _
How did labor and land wonership changes after civil war affect society?
