Решите уравнение: 2 5/6 - 3/8х = 1/4х + 3 1/3; 2(3 3/4 - 2х) + 2,5=1 2/9 - (-х + 2/3).

Question

Решите уравнение: 2 5/6 - 3/8х = 1/4х + 3 1/3;
2(3 3/4 - 2х) + 2,5=1 2/9 - (-х + 2/3).

Answer 1

2 5/6-3/8х=1/4х+3 1/3
17/6-3/8х=1/4х+10/3
-3/8х-1/4х=10/3-17/6
-5/8х=1/2
х=-4/5

2(3 3/4-2х)+2,5=1 2/9-(-х+2/3)
2(15/4-2х)+2,5=11/9-(-х+2/3)
15/2-4х+25/10=11/9+х-2/3
-4х-х=11/9-2/3-15/2-5/2
-5х=5/9-10
-5х=-9 4/9
-5х=-85/9
 х=17/9=1 8/9