anthonymaryoyinkanso anthonymaryoyinkanso
  • 02-07-2020
  • Mathematics
contestada

Solve the pair of simultaneous equation 4x+6y=21 and 7x-3y=3

Respuesta :

isabellaconrado28 isabellaconrado28
  • 02-07-2020

Answer:

Step-by-step explanation:

Answer Link
barakaodoyo5
barakaodoyo5 barakaodoyo5
  • 02-07-2020

Answer:

X=1.5,y=2.5

Step-by-step explanation:

By elimination method

U have to make either x or y values equal and then eliminate it

The y values have a common value 12

By multiplying 6×2 and 3×4

2(4x+6y)=(21)2

4(7x-3y)=(3)4

8x+12y=42

+

28x-12y=12

36x=54

X=54/36=1.5

Substitute x with 1.5

Y=2.5

Answer Link

Otras preguntas

The gases in the air attracted to earth by gravity form layers called the ____
There is an inverse relationship between x and y. If y is when x is 3, what is x when y is 9? 3 5
What is a series of events that cells go through as they grow and divide
What is a communicable disease ?
Why did president Washington want the United States to remain neutral
What is a series of events that cells go through as they grow and divide
how is the expression of sex linked genes both  similar to and different from the expression of autosomal genes?
sam cut a pie into equal parts.There are 3 slices left.The angle measures for 3 slices is 72.how many slices did he cut?
How did the Declaration of Independence change the nature of the American Revolution?
a soccer team played 160 games and won 65% of them. how many did they win?