AC Lim's answer to Stressful's Secondary 1 Maths Singapore question.

Ask ManyTutors
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
AC Lim
Ac Lim's answer
13119 answers (A Helpful Person)
L = 70 + 5m
Original length m=0
∴ L = 70 cm

(m/2)×8=-20
4m = -20
m = -20/4
m = -5.

Hope this helps