1/2(4-3 1/2x)=1 1/4 x -1/2
1/2*(4 - 3 1/2x) = 1 1/4x - 1/2
2 - 1 3/4x = 1 1/4x - 1/2
1 1/4x + 1 3/4x = 2 + 1/2
3x = 2 1/2
x = 2 1/2 * 1/3
x = 5/2 * 1/3
x = 5/6
Решите задачу: