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
Representa una funcion cuadratica con las siguientes caracteristicas a: vertice en (2,-4)y b: puntos de corte con el eje x(-2,0)y (g,0)
In a school building, rhere are 8 exterior doors and twelve stairways to enter the second floor. Find the total number of ways to reach the second floor.
What are the functional cells of the humoral immune system that mature into immunoglobulins?
Find the total cost of a $619.50 refrigerator if the sales tax rate on the purchase is 2.8?
2.How are the graphs y=x^2 and y=x^2-3 related? 3.Find the equation of the axis of symmetry for f(x)=x^2+4x-5. I really need help i have more problems can someo
ANSWER ASAP write and equation in slope intercept form that passes through the points (-5,3) and (1,5) show work please
Which shows a correct order to solve this story problem? Lucy bought some muffins for her sports team. She bought 1 box of 12 blueberry muffins for $6.60 a
According to a study conducted by the national institute of mental health called the treatments for adolescents with depression study (tads), which is the most
Selective pressures created by environmental factors can lead to success of __________ individuals in a population.
During the fall of classical empires in Rome, China, and India what commonality existed? Populations turned away from religion in favor of government security.
