Решите уравнение 1)1/3(x+1)-2/3(x-1)=2/3(x-3) 2)1/2(3x+7)-3/4(2x-2)=3/4(x+1) 3)x(x-3)+x(2x-1)=3x(x-2)-3 4)x(x+1)(x-10)=(x-1)(x-3)(x-5) 5)(x-1)(x-4)(x+7)=x(x+1)^2

1)
1/3(х+1) - 2/3(х-1)=2/3(х-3);
1/3х+1/3-2/3х+2/3=2/3х-2;
1/3х-2/3х-2/3х=-2-2/3-1/3;
-3/3х=-2цел3/3;
-х=-3;
х=3.
2)
1/2(3х+7)-3/4(2х-2)=3/4(х+1);
3/2х+7/2-3/2х+3/2=3/4х+3/4;
-3/4х=3/4-3/2-7/2;
-3/4х=3/4-6/4-14/4;
-3/4х=-17/4;
х=-17/4÷(-3/4);
х=17/4×4/3;
х=17/3=5цел2/3.
3)
х(х-3)+х(2х-1)=3х(х-2)-3;
х^2-3х+2х^2-х=3х^2-6х-3;
х^2+2х^2-3х^2-3х-х+6х=-3;
2х=-3;
х=1цел1/2.