02-11-2017
Mathematics

contestada

Solve equations with 3 variables

Solve equations with 3 variables class=

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

Otras preguntas

A standard city block in Manhattan is a rectangle measuring 80 m by 270 m. A resident wants to get from one corner of a block to the opposite corner of a block

I have to simplify the expression 12x⁻⁶y¹⁰.3x⁷y

John is asked to roll a fair number cube, numbered from 1 to 6, and toss a balanced quarter simultaneously. What is the probability that he will roll a 2 and th

How can you tell that toast is not warmed up by conduction?

Which statement would a suppirter if the Declaration of Sentiments most likely have made? A.We must demand that women have the right to vote B.Lets state that w

The equation of line one is 3x – 2y = 5. The equation of line two is x + 2y = 7. What is the point of intersection of the line?

How did education empower African Americans

what is 15409 in a diffrent form

I know that it falls to the left and rises to the right but how do I express that here?

Which of the following represents a health care policy? a.Trade b.Medicare c.Welfare