Perimeter= 2(4x -17) + 3x + 9
simplify
8x - 34 + 3x + 9
rearrange commons
8x + 3x -34 + 9
simplify
11x - 25
the perimeter should equal 11x -25!
I hope this is what you're looking for. The concept of regrouping<span> (borrowing) is so that students can see what actually happens in it. For example, to </span>subtract <span>52 − 38, we write 52 as 50 + 2 (breaking it down into its tens and ones). Then, </span>regrouping<span> means that 50 + 2 becomes 40 + 12.</span>
false it starts from 1 and continues
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