IXL Algebra1 - H.5 Identifying Equivalent Equations

Identify which equations have been operated on BOTH sides in the same way. Be careful, there are lots of arithmetic traps like 12 x 7 = 84 and you might have 14 x 7 which is not .... I managed to make some errors on these so be careful.

There is more than one right answer possible, in fact, they might ALL be equivalent.