Question

If 4x+6y=32, 4x-2y=4, then 8y is
Please answer it..

Answer 1

The value of 8y=28

4x+6y=32

4x-2y=4

(-) (+) (-)

8y=32

Answer 2

the value 8y in 4x+6y=32, 4x-2y=4 is 28

Step-by-step explanation:

let equation

4x+6y=32 _ equation (1)

4x-2y=4 _ equation (2)

then taking difference of equation (1) from (2)we have

8y=32-4 implies

8y=28 therefore here value of 8y is 28

DEFINITION (or concepts need to know)

• generally there are constants and variables constants have a well defined value over the process which will not change.
• while variables take the value ,and there are not fixed ,one can take any value for a variable
• HERE ,X and Y are variables
• and in equation (1) we see 4 ,6 they are coefficient of x and y respectively which remains same or a constant .
• equation 1 and 2 are examples of linear equation in xy plane ,that is equation of a line in a plane X Y,with well defined slope and intercepts to X and y axes.

some question to understand more

Check whether the following equations are consistent or inconsistent. Solve them graphically.a) 3x+2y=5 2x - 3y = 7

https://brainly.in/question/5484284

Q7. If 4x +6y=32 and 4x-2y =4, then, 8y is equal to *1 point28303642

https://brainly.in/question/18417244