1) Resolver: 3( x – 2) + 5 = x – 3 Rpta: ............................... 2) Resolver: 2 + x - (3x + 7) = - 11 Rpta: ............................... 3) Resolver: 3(x – 1) – 4= 2(x – 1) Rpta: ............................... 4) Resolver: 16 – 4x + 6x = 12x + 8
Respuestas
Respuesta:
1) Resolver:
3( x – 2) + 5 = x – 3
3x - 6 +5 = x - 3
3x - 1 = x - 3
3x - x = - 3 + 1
2x = -2
x = -1
2) Resolver:
2 + x - (3x + 7) = - 11
2 + x - 3x -7 = -11
-5 -2x = - 11
-2x = -11 + 5
-2x = -6
x = 3
3) Resolver:
3(x – 1) – 4 = 2(x – 1)
3x - 3 - 4 = 2x - 2
3x -7 = 2x - 2
3x - 2x = 7 - 2
x = 5
4) Resolver:
16 – 4x + 6x = 12x + 8
16 +2x = 12x + 8
16 - 8 = 12x - 2x
8 = 10x
= x
Espero ayudarte
ponme coronita
Respuesta:
1) x= -1
2) x= 3
3) x= 5
4) x= 4/5
CALCULOS:
1) 3( x – 2) + 5 = x – 3
3x - 6 + 5 = x - 3
3x - x = - 3 + 1
2x = - 2
x = -2/2 ---> -1
2) 2 + x - (3x + 7) = - 11
2 + x - 3x - 7 = - 11
- 5 + x - 3x = - 11
- 2x = - 11 + 5
x = -6/-2 ---> 3
3) 3(x – 1) – 4= 2(x – 1)
3x - 3 - 4 = 2x - 2
3x = 2x - 2 + 3 + 4
3x - 2x = 5
x = 5
4) 16 – 4x + 6x = 12x + 8
- 4x + 6x = 12x + 8 - 16
- 4x + 6x - 12x = - 8
- 10x = - 8
x = -8/-10 ---> 4/5
Saludos.