Question

What is the value of the expression 4x-y/2y+z when x=3 and y=3

Answer 1

Answer:

14.5

Step-by-step explanation:

When solving this we need to use the substitution method. So let's substitute 3 for x and 3 for y.

4x - y / 2y + x

4 ( 3 ) - 3 / 2 (3)  + 3

12 - 3 / 6 + 3

Using the method PEMDAS we know to solve the parenthesis first.

12 - 3 / 2(3) + 3

12 - 3 / 6 + 3

Using the method again we know to divide before we add or subtract,

12 - 3 / 6 + 3

12 - 0.5 + 3

Then we subtract

12 - 0.5 = 11.5

Lastly, we add the remaining numbers

11.5 + 3 = 14.5

Hope this helps :)