Seudónimo Seudónimo
  • 30-09-2016
  • Mathematics
contestada

3x + 8y = 85 7x -2y =33 (solve the following equations)

Respuesta :

thechiiquita23
thechiiquita23 thechiiquita23
  • 30-09-2016
what is it that you are looking for ?
x or y ?
Answer Link
aditilagad
aditilagad aditilagad
  • 30-09-2016
3x+8y=85
7x-2y=33

4(7x-2y=33)
28x-8y=132
+3x+8y=85

31x=217
__ ___
31 31

X= 7

7(7)-2y=33
49-2y=33
-2y=-16
______
-2

Y=8

(7,8)
Answer Link

Otras preguntas

What is the relationship between railroads and cities
The Magna Carta was signed during the early thirteenth century. Which statement is also true? a. The Magna Carta was signed during the early 1200s. b. The Mag
How do I write 16,107,320 in expanded form?
Choose the correct sequence of the items listed below to show the rise of Civilizations. A.Trading goods,division of labor. B.Acquire food on a regular basis.
what is 56/7658 in simplest form
Which expressions are equivalent to 2e*f?
What system sustained the Persian Empire?
what is the value of the 4 in 475
Increased productivity most often leads to (1 point) a. higher standards of living. b. better educational opportunities. c. shorter working hours. d. lower prof
What is 7 times the sum of a squared and b minus 4 times the sum of a squared and b