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 ( 28+ )
Otras preguntas
"The trees were soldiers marching along the drive" is-- a metaphor a simile alliteration rhyme
Find the missing measure. 50° x°
Sociologist arlie rothchild has studied how two-parent households handle the division of labor for the many tasks of domestic life. In the context of her studie
Gretta is having a birthday party and is buying pizza for everyone. She buys 32 pizza for 8.00 dollars. What is the unit rate?
Managers at Umbrella Corporation, a firm in East Asia, want to make their company a global leader in business process outsourcing (BPO). What should the Umbrell
Question 7 of 10 What does the active reading strategy known as "making predictions" involve? O A. Making a guess about what will happen next in the text B. Sum
what is fission? write any two characteristics of meristematic tissue
Ms. Pena is grading math tests. If 212 x 51 = 10,812, is the student’s work below correct? Explain 2.12 x 5.1 = 1.0812
freya thinks of a number she multiplies the number by 2 and then subtracts 10 the result is 50 what number did freya think of?
Pls help will put brainliest
