60x+ 20y - 4x -10y
Step 1 ) collate the X's together = 60x -4x = 60-4= 56 add the x = 56x Step 2) collate the Y's together = +20y - 10y = +20 -10 = +10 add the y = +10yStep 3) add answers to step 1 and 2 together = 56x+10y
Final Answer = 56x+10y
4 Marks = 2 for working 2 for correct simplified answer If correct answer given all marks awarded
However, need to highlight the importance of showing your working