a) 2x +6= 36
b) (900: 10).2= 18x
c) 7x – 12.3=( 1300: 100)
d) X : 12=1
e) ( 48 : 6) + x = 9
a) 3x + 2x=
b) 9x -6x=
c) 8x + 5x=
d) 16x -14x=
a) 3x +2x =250
b) 5x +3= 2x +30
5x -2x = 30 - 3
3x =27 ____________________ Ejemplo resuelto
X= 27 : 3
X = 9
c) 9x – 12= 8x +6
d) 16 x -15x = 19 .12
e) 2x -12 = x + 8
f) 96 x +20 =3020 – 4x
g) 47 x + 83 = 167 +5x
Respuestas
Respuesta:
a) 2x +6= 36-6
2x = 30/2
x = 15
b) (900: 10).2= 18x
18x = ( 900 : 2 ) .2
18x = 90 .2
18x = 180/ 18
x = 10
c) 7x – 12.3=( 1300: 100)
7x - 36 = 13 + 36
7x = 49/7
x = 7
d) X : 12=1
X = 1 .12
X = 12
e) ( 48 : 6) + x = 9
8 + x = 9 - 8
x = 1
a) 3x + 2x= 5x
b) 9x -6x= 3x
c) 8x + 5x= 13x
d) 16x -14x= 2x
a) 3x +2x =250
5x = 250/5
x = 50
b) 5x +3= 2x +30
5x - 2x + 3 = 30
3x = 30-3
3x = 27 / 3
x = 9
c) 9x – 12= 8x +6
9x - 8x = 6 + 12
x = 18
d) 16 x -15x = 19 . 12
x = 228
e) 2x -12 = x + 8
2x - x = 8+12
x = 20
f) 96 x +20 =3020 – 4x
96x + 4x = 3020 -20
100x = 3000
x = 30
g) 47 x + 83 = 167 +5x
47x - 5x = 167 -83
42x = 84 / 42
x = 2