Based on the calculation below, the amount he should pay altogether is RM15x – y.
<h3>How to solve a problem by collecting like terms?</h3>
Let C represent the entrance fee for a child and A represents the entrance fee for an adult, we therefore have:
C = RM(3x-y)
A = RM(3x-y) + RM2y = RM3x – RMy + RM2y = RM(3x – y + 2y) = RM(3x + y)
Since Mr. Kamal and his wife bring their three children to the circus, this implies that we have 2 adults and 3 children.
The amount he should pay altogether (T) can therefore be calculated by collecting the like terms as follows:
T = 3C + 2A = 3RM(3x – y) + 2RM(3x + y)
T = RM9x – 3y + RM6x + 2y
T = RM9x + RM6x – 3y + 2y
T = RM15x – y
Learn more about like terms here: brainly.com/question/14557679.
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