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 ( 27+ )
Otras preguntas
A pea plant is heterozygous for height (Tt). Which allele will be carried by a pollen grain produced by the plant? A.T only B.t only C.T and t D.T or t
find the sum of 3b/b+2 and 12/b+2 and express it in simplest form
Which of the following changes will decrease the rate of collisions between gaseous molecules oftype A and B in a closed container? A. decrease the volume of t
a bottle contains 12 red marbles and 8 blue marbles. A marble is chosen at random and not replaced. Then a second marble is chosen at random. Determine the prob
What is the first 30 numbers of pi?Last one Promise!
What is a federal scout
What do epidermis and the dermis have in common? Could you please help me with me questions?
How was society organized in the Middle Ages?
what is an example of a narrative poem
Well explained answer plz: Can girls with dark black skin bleach there girlstashes? ???
