Question

упростить выражение

Answer 1

3 6/7х-7/9х+4 4/63х=3 54/63х-49/63х+4 4/63х=7 9/63х=7 1/7х

4 2/9у+3 1/5у-2у=4 10/45у+3 9/45у-2у=7 19/45у-2у=334/45у-90/45у=244/45у=
=5 19/45у