Algebra again

Just finished marking your algebra worksheets.

Some things to take note of:

1) The units should only appear once in the final answer
E.g. It should be $(2x + 6) and not $2x + $6, even though they are equal.

2) The units should be outside the brackets and not within the brackets.
E.g. (3 + 6y) kg and not (3 + 6y kg).

3) The number should appear before the letter. Remember that in Maths, numbers are more important!!!!
E.g j x 3 = 3j and not j3! 3 should appear before j!

4) For division and multiplication, ensure that the answer is simplified.
E.g.1) 2x/8 can be simplified cos 2 and 8 have a common factor of 2, so the answer should be x/4.
E.g. 2) $3y x 5 is $15y. Multiply 3 and 5.

5) When the units are different, make them the same.
E.g. $50 + 45x cents = 5000 cents + 45x cents = (5000 + 4x) cents
or $50 + 45x cents = $50 + $0.45x = $(50 + 0.45x)

AND MOST IMPORTANTLY..........FOR EVERY ASSIGNMENT,
REMEMBER TO DO YOUR CORRECTIONS CORRECTLY!