Answer:
u need decimals for all of them or u at least use them a lot
Step-by-step explanation:
x/20 = 21/14 (similar proportions)
x/20 = 3/2 (simplify by canceling out a factor of 7)
x = 30
Ok so to start, your unknown numbers will ne represented as x. The equation looks like this: x+x+1+x+2=228. You have your unknown number, the number plus one, and the numner plus two. To find the answer you divide 228 by 3. Those numbers are all equal though,so you play around with them until you get 75+75+1+75+2=228
The expression shown is an arithmetic expression. An arithmetic expression results in a numeric value.
The answer by the way is -6.