Question

I’ve been stuck in this question and I still don’t get it

Answer 1

Explanation:

`(1)/(3)k + 80 = (1)/(2)k +120\\\\(1*2)/(3*2)k+80=(1*3)/(2*3)+120\\\\(2)/(6)k+80=(3)/(6)k + 120\\\\80 = (3)/(6)k - (2)/(6)k +120\\\\80 = (1)/(6)k + 120\\\\80-120=(1)/(6)k\\\\-40 = (1)/(6)k\\\\-40*6=k\\\\-240 = k`