Hi. You guys know how to calculate (formula) these ones? I'm studying by myself, so I don't get any teacher help.

(k-3) â€“ (5-3k) = 2(k+1)

should it continue like this... (answer is k = 5)

k - 3 - 5 - 3k = 2k + 2

and how about this second one? (answer x = 6)

x/2 â€“ (x-1)/5 = 2

(k-3) â€“ (5-3k) = 2(k+1)

should it continue like this... (answer is k = 5)

k - 3 - 5 - 3k = 2k + 2

and how about this second one? (answer x = 6)

x/2 â€“ (x-1)/5 = 2

Last edited by a moderator: