Решите уравнение -0.25-(-7b/12-1/4)=-(b/6+5/12)+b
-0.25-(-7b/12-1/4)=-(b/6+5/12)+b 7b/12=b-b/6-5/12 7b/12=5b/6-5/12 7b/12-5b/6=-5/12 (7b-2*5b)/12=-5/12 (7b-10b)/12=-5/12 -3b/12=-5/12 3b/12=5/12 3b=5/12*12 3b=5 b=5/3 b=1 2/3