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 ( 51+ )
Otras preguntas
How does the ozone protect us from harmful radiation?
Two plumbers were working together on a new apartment building. one of them was the father of the other one's son. how is this possible?
Britain had a dream of building a railroad from Mediterranean sea to South Africa(I.e. from Carol To Cape Towns) which country was in the strongest position to
A large industrial firm allows a discount on any invoice that is paid within 30 days. of all invoices, 10% receive the discount. in a company audit, 15 invoices
If 2y + 2w = x, then W, in terms of X and Y, is equal to? Choose the correct answer. 1) x - y 2) x - 2y ____ 2 3) x + y 4) x + 2y ____
Which correctly names a ray shown in a the figure???
According to freud's psychodynamic theory, the part of the personality that is the conscience is the:
Write a real-world problem that can be represent 3x + 6 > 27
Vince borrows $900 to buy a couch. He will pay off the loan by paying 1.5% simple interest for 2 years. Vince incorrectly calculates the amount he will pay back
What kinds of technology aided imperialism
