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 ( 23+ )
Otras preguntas
What is the sum of 9 7/8 plus 11 2/8?
u How do u think sport injuries affect people's mental health
A balloon artist claims the probability a randomly selected balloon pops while being molded is 0.10 and that balloons pop independent of other balloons. P
how do you respond to becoming the church of the poor during the celebration of the Eucharist?
Find the mean score. Write your answer as a decimal.
The base of a triangular prism is a right triangle with a base of 6 feet, a height of 8 feet, and a third side length of 10 feet. The height of the prism is 10
Compare and contrast the four main types of clouds and the weather they indicate.
What’s wrong with this bibliography entry? Harriet Tubman: Secret Agent by Allen, Thomas B. Washington, DC: National Geographic Books, 2006. A, The book’s title
What are the possible transformations that could have been used to create the red figure A'B'C'D' from the blue figure ABCD? A D' -5-4-3-2-1. B 3 A 5 x -2 a ref
6, 2, 8, 4, 9 How would the median change if the 6 was replaced by a 3?
