Question

Evaluate the expression 12-3y÷2+y(2y-4÷y) for y=3

Answer 1

Answer:

12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y )   =   21.51.

Step-by-step explanation:

Here, the given expression is:

12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y )

Now, we need to evaluate the given expression for y = 3

12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y )   by the rule of BODMAS

12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y )  = 12 - 3(3) ÷ 2 + 3(2(3) -4 ÷ 3)  

= 12 - 9 ÷ 2 + 3( 6 - 4 ÷ 3)

=  12 - 9 ÷ 2 + 3( 6 - 4 ÷ 3)

=  12 - 4.5 + 3( 6 - 1.33)

= 7.5 + 3(4.67)

=  7.5 + 14.01

= 21.51

So,   12 - 3 y ÷ 2 + y( 2 y - 4 ÷ y )   for y = 3  is 21.51.

Answer 2

Answer: -.2

Step-by-step explanation: you plug in 3 where every y is. You get 12-9 divided by 2 plus 3 times 6 minus 4/3 or 4/2 + 3(6-4/3)