Respuesta :

Answer:

34

Step-by-step explanation:

7(5-2y) + (3y-5) and y=4.

Dont stress out luv so what you do is replace y with 4 like this:

7(5-2x4) + (3x4-5)

= (35-8) + (12-5)

=27+7

=34

When you have a number outside the bracket like 7(5-2x4), the number outside the bracket which in this is 7, you times it by the numbers inside.

So:

7(5-2x4) so you need to first do 5-2=3 then times it by 7, 7x3=21, then you do 7x4 which is 28.