-2/3 + (х - 1/4) = 0; 2) - 2/3 + (1/4 - х) = 0

-2/3 + (х - 1/4) = 0;

x - 1/4 = 2/3

x = 2/3 + 1/4

x = 8/12 + 3/12

x = 11/12

2)

- 2/3 + (1/4 - х) = 0

1/4 - x = 2/3

x = 1/4 - 2/3

x = 3/12 - 8/12

x = -5/12

1. -2/3+(x-1/4)=0-2/3+x-1/4=0-2/3-1/4+x=0-8/12-3/12+x=0-11/12+x=0x=0+11/12x=11/122. -2/3+(1/4-x)=0-2/3+1/4-x=0-8/11+3/12-x=0-5/12+x=0x=0+5/12x=5/12