Line 1:2x should also be simplified not just 3
line 1 : if he were to do that, he should do it with every single number in the fraction 2x+3/3
He should also divide the 2x and not only the 3 on line 1.
On Line one, the person should not cancel the 3s away. The numerators must be multiples of 3 in order to be able to cancel.
There is a mistake at Line 1. He should not cancel both the 3 on the numerator and denominator . The numerators must be multiple of 3 to be able to be cancelled.
There is a mistake in line 1 . 3 should not br canceled by the denominator.Both the numerators should be a common multiple inorder for the cacellation to work
There is a mistake in line 1 to 2, the error is in 2x+3/3=2x it should be 2x+3/3=2x/3+1
The cancelation method will only work when both of the numerators and are common multiple of the denominator.
In line 1, he should not cancel the both threes, instead just leave it.
line one: He cannot do that as2x is not a multiple of 3