Answer:This expression 28+47x = 8 (3+5X)+7X+4.
Step-by-step explanation:
Given : Expression for 8 (3+5X)+7X+4 if X=3 .
To find : Write an equivalent expression .
Solution : We have 8 (3+5X)+7X+4.
Lets replace all the x's with 3 so we get: 8*(3+5*3)+7*3+4.
Remove the parenthesis and we get: 8*18+7*3+4.
Finally we have = 169.
To get equivalent expression :
First distribute 8 among 3+5x and we get:
24+40x+7x+4.
Now we combine all like factors and get: 28+47x.
Lets replace all the x's with 3 so we get: 28+47*3
= 169 .
Therefore , This expression 28+47x = 8 (3+5X)+7X+4.
