You made this very confusing could you post clearer picture
Answer:
888,408 = 888,410. 707,740 = 710,000. 423,319 = 423,320. 782,787 = 782,800.
Step-by-step explanation:
There are 4 hundreds 4 tens and 9 ones.
Work: 231 + 218 = 439
Hope this helps!
To get an expression relating to x you need to have x alone on one side of your equation. ie x =
<span>Try this: </span>
<span>rx - st = r </span>
<span>remove st from the rx side </span>
<span>rx = r + st </span>
<span>now divide by r </span>
<span>x = (r + st)/r </span>
<span>You now have your expression relating to x</span>