kimberlywuraola
kimberlywuraola kimberlywuraola
  • 17-06-2020
  • Mathematics
contestada

solve the simultaneous equation
x + y = 4,
3x + y = 8​

Respuesta :

jooooyce
jooooyce jooooyce
  • 17-06-2020

Answer:

x=2, y=2

Step-by-step explanation:

x+y=4

3x+y=8

3x-x=4

2x=4

x=4/2

=2

2+y=4

y=4-2

=2

Answer Link

Otras preguntas

Frank explains a hypothesis he holds: that people in their 20s and men age 50 and older are most likely to buy science fiction. frank shows you a sketch of a pi
He rain caused the river to ride a total of 6 2/3 inches. The river was rising at an average of 2/3 of an inch each hour. How many hours did it rain?
Escoge las zonas de Perú. Patagonia Zone Coastal Zone Mountain Zone Rainforest Zone
Which answer choice is equivalent to the following decision? if a > 12 then   if b > 8 then    output "Yes"   endif endif a. if a > 12 OR b > 8 th
What is a direct cause of coral bleaching? a. exposure to sunlight b. the loss of symbiotic algae c. overgrazing by fish d. all of the above Please select the b
What is the expression in factored form? x2 + 14x + 48
What technological changes at the turn of the twentieth century affected American life
There are two large pieces of construction paper. The red piece has an area of 90 in2, while the blue piece is 12 inches long by 9 inches wide. Which paper is l
What is the remainder of (x3 - 6x2 -9x + 3) ÷ (x - 3)? A.) 17 B.) -17 C.) 51 D.) -51
A hierarchy of authority is ________. most military organizations are known for having a strong hierarchy of authority.