I have a pizza cut into fifths. I give 1/5 to a friend. Then my friend gives me 2/5 of a pizza back. How many slices of pizza do I have left?
Answer: d= 412
i did 267+145 and that was 412 then i did 212-267 and got 145
Okay. The question is m/9 - 17 = 21. First off, we will add 17 to both sides. -17 + 17 cancels out. 21 + 17 is 38. That leaves m/9 = 38. Multiply each side by 9 to isolate the m, because m is the numerator and 9 is the denominator. m/9 * 9/1 cancels out. 38 * 9 is 342. Let's check this. 342/9 is 38. 38 - 17 is 21. 21 = 21. There. x = 342.
