Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Algebra
One Answer Below
Anyone can contribute an answer, even non-tutors.
Pls solve and explain
Date Posted: 3 years ago
Views: 306
Add 5 to the number and dividing the result by 2 is the same as subtracting 3 from the number.
Let number be 1 unit
(1 unit + 5) ÷ 2 = 1 unit - 3
1 unit + 5 = (1 unit - 3) x 2
1 unit + 5 = 2 units - 6
1 unit + 5 + 6 = 2 units
1 unit + 11 = 1 unit + 1 unit
So 1 unit = 11
The number is 11
Let number be 1 unit
(1 unit + 5) ÷ 2 = 1 unit - 3
1 unit + 5 = (1 unit - 3) x 2
1 unit + 5 = 2 units - 6
1 unit + 5 + 6 = 2 units
1 unit + 11 = 1 unit + 1 unit
So 1 unit = 11
The number is 11
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
First let the number equal to an unknown.
Then follow the question’s details where (n+5)/2 = n-3
Then follow the question’s details where (n+5)/2 = n-3
Date Posted:
3 years ago
360 Tutoring Program