Question

ecuaciones :
1/4+2/5×=3/4+×/2

1/2(×-1)-2/3=1+[×-1/2]

nota : los palitos son fracciones :v

Answer 1

1)

1/4+2/5×=3/4+×/2

5+8x/20 = 6+4x/8

8(5+8x) = 20(6+4x)

40 + 64x = 120 + 80x

40 - 120 = 80x- 64x

-80 = 16x

-80/16 = x

-5 = x

2)

1/2(×-1)-2/3=1+[×-1/2]

(x-1/2) - 2/3 = 1 + x - 1/2

3x-3-4/6 = 1 + (2x-1/2)

3x - 7 = 6( 2+2x-1/2)

3x - 7 = 3(2+2x-1)

3x - 7 = 6 + 6x - 3

-7 -6 +3 = 6x - 3x

-13 + 3 = 3x

-10 = 3x

-10/3 = x

Atte: Natureza