Question

2y/3 - 2 = -y +1 . Please solve using systematic method. Class 6 Solution also​.

Answer 1

Explanation:

Suppose that gcd(2n+1,9n+4)≠1 and there exist a d such that gcd(2n+1,9n+4)=d.

Now d|9n+4, and d|2n+1 ⟹d|9n+4−4×(2n+1).

⟹d|n.

d|2n+1−n⟹d|n+1.

Again: d|n+1−n⟹d|1.

It is enough I think