Chong Jia Tao's answer to Pin's Secondary 2 Maths Singapore question.
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Jane is x+3
The other one is 2x+6
4x+9 is 21
x=(21-9)/4
The other one is 2x+6
4x+9 is 21
x=(21-9)/4
Date Posted:
4 years ago
Can you explain how to do 9b?
I did 9b already my answer covers both 9a and 9b
For 9b add up the 3 girls timing then u minus 9 first then divide by 4
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