Решите уравнение 7х-(5-х)=6(х-2)+1
7x-(5-x)=6(x-2)+1 7x-5+x=6x-12+1 8x-5=6x-11 8x-6x=5-11 2x= -6 x= - = -3 ------------------------------------------- 7*(-3) - (5+3) = 6(-3-2)+1 -29 = -29