Low Yong Jie's answer to Hi's Primary 6 Maths Algebra Singapore question.

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Low Yong Jie
Low Yong Jie's answer
4 answers (Tutor Details)
1st
Let y be number of tarts baked on Monday
We need to find out what y is

Since she baked 5 more tarts on Tuesday than on Monday, this means that
Number of tarts baked on Tuesday: y + 5

It was given that she baked a total of 25 tarts on both day.

Algebraically, the total amount of tarts she baked on both days is y + y + 5 = 2y + 5

This means 2y + 5 = 25
Subtracting the 5 from both sides:
2y = 20
To find out what y is, we divide both sides by 2:
Therefore, y= 10