no 7-x= -x+7 because any number without a +/- before is positve, so when flipping the order around, draw all the signs in first, so +7-x=7-x and now you can convert it into addition, then flip it because order doesnt matter in addition 7-x=-x+7
The equation 7-x is not the same as x-7. This is because the end result cannot be the same as one will be positive and the other will be negative. For instance, suppose the value of x is 2, 7-x will be 5 while x-7 will be -5.
No, it's not. Here's how: lets make the X a 3, and now your equation is 7 - 3, which equals 4. Now lets switch the equation around, which you think is the same: 4 - 7, which equals -3. So no, they're not the same.