resolver la siguientes ecuaciones
a)1/2x+4=16
b) 3/4x+5/2=5/2x-11/4
c)3x/2+2x/3=(1+3x)/2
d)3(x/2-4)=5
e)(5x+7/2)-(x+4/5)=(3-x/4)
f) (2/4x-1)=(3/4x+1)
plis le doy corona
Respuestas
Respuesta:
a ) 1 / 2x + 4 = 16
1 / 2x = 16 - 4
1 / 2x = 12
x = 12 / 1 / 2
x = 24
0.5 * 24 + 4 = 16
16 = 16
b ) 3/ 4x + 5 / 2 = 5 / 2x - 11/ 4
3 / 4x - 5 / 2x = - 11 / 4 - 5 / 2
- 1.75x = - 5.25
x = - 5.25 / - 1.75
x = 3
2.25 + 2.5 = 7.5 - 2.75
4.75 = 4.75
c ) 3x / 2 + 2x / 3 = 1 / 2 + 3x / 2
3x / 2 + 2x / 3 - 3x / 2 = 1 / 2
Se cancela : 3x / 2 - 3x / 2
2x / 3 = 1 / 2
2x = 0.5 * 3
2x = 1.5
x = 1.5 / 2
x = 0.75
1.125 + 0.5 - 1.125 = 0.5
0.5 = 0.5
d ) 3x /2 - 12 =5
3x / 2 = 5 + 12
3x / 2 = 17
3x = 17 * 2
3x = 34
x = 34 / 3
x = 11.33333
34 / 2 - 12 = 5
17 - 12 = 5
5 = 5
e ) 5x + 7/ 2 - x + 4 / 5 = 3 - x / 4
5x - x - x / 4 = 3 - 7 / 2
3x = 3 - 7 /2 * 4
3x = - 0.5 * 4
3x = - 5.2
x = - 5.2 / 3
x = 1.73333
f ) 2 / 4x - 1 = 3 / 4x + 1
2 / 4x - 3 / 4x = 1 + 1
- 0.25x = 2
x = - 8