Write 1/2 the difference of a number and 15 as an algebraic expression : ) answer asap pls! worth 50 points and i will reward you brainliest (if you answer correct)

Let n = the unknown number.

You want 1/2 the difference of a number an 15.

First you need to subtract 15 from the number to get the difference.

This would be written as n-15

Then to get half that value, you would need to divide by 2

The equation becomes: (n-15) / 2

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!