<em>х+(х-6)+1.25х=33</em>
<em>х+х-6+1.25х=33</em>
<em>х+х+1.25х=33+6</em>
<em>3,25х=39</em>
<em>х=12.</em>
<em>___________</em>
<em>х+(х-6)+1.25х=33</em>
<em>12 + (12-6)+1,25*12=33</em>
<em>33=33</em>
<em>Отв: х=12.</em>
1) 62x+38x=256+144
100x=400
x=4
2) 72х-92х=51-351
-20x=-350
x=17.5
3) -43x-62x=-44-229
-105x=-273
x=2.6
4) 95x-49x=-55-405
<span> 46x=-460
х=-460:46
х= -10</span>
862*0=0
1581:1=1581
0:55=0
1*120=120
< 5=35°
< 6=35°
< 7=80°
< 8=80°