Решите уравнение 1\2( х-3)=1\4(9- х)

Question

Решите уравнение 1\2( х-3)=1\4(9- х)

Answer 1

1\2 ( x -3 ) = 1\4 (9-x)
1\2x -3\2 = 9\4 -1\4x
1\2x + 1\4x = 9\4 + 3\2
1\2 x + 1\4x =2\4x + 1\4x =3\4x
9\4 + 3\2 =9\4 + 6\4 =15\4
3\4x = 15\4
x = 15\4 : 3\4
15\4 :3\4 = 15\4 x 4\3=5
x = 5

Answer 2

1/2(х-3)=1/4(9-х)
1/2х-3/2=9/4-1/4х
2/4х+1/4х=9/4+6/4
3/4х=15/4
х=15/4:3/4
х=5