х+(х-6)+1.25х=33
х+х-6+1.25х=33
х+х+1.25х=33+6
3,25х=39
х=12.
12 + (12-6)+1,25*12=33
33=33
Отв: х=12.
х+(х-6)+1.25х=33
х+х-6+1.25х=33
х+х+1.25х=33+6
3,25х=39
х=12.
х+(х-6)+1.25х=33
12 + (12-6)+1,25*12=33
33=33
Отв: х=12.