Resolver y VERIFICAR las ecuaciones:
a) 2 - 6x = 20 + 3x
b) 5x - 8 = 2 + 10x
C) 6x + 30 – 5x = 25
d) 3x + 2x = 8x – 15
e) 6 + 5x = x + 30
AYUDAAA
Respuestas a la pregunta
Respuesta:
Explicación paso a paso:
a) 2 - 6x = 20 + 3x
2 - 20 = 3x + 6x
-18 = 9x
-18/9 = x
-2 = x
VERIFICAMOS
2 - 6x = 20 + 3x
2 - 6(-2) = 20 + 3(-2)
2 + 12 = 20 - 6
14 = 14
b) 5x - 8 = 2 + 10x
-8 - 2 = 10x - 5x
-10 = 5x
-10/5 = x
-2 = x
VERIFICAMOS
5x - 8 = 2 + 10x
5(-2) - 8 = 2 + 10(-2)
-10 - 8 = 2 - 20
-18 = -1 8
c) 6x + 30 – 5x = 25
x =25 - 30
x = -5
VERIFICAMOS
6x + 30 – 5x = 25
6(-5) + 30 - 5(-5) = 25
-30 + 30 + 25 = 25
25 = 25
d) 3x + 2x = 8x – 15
5x = 8x - 15
15 = 8x - 5x
15 = 3x
15/3 = x
5 = x
VERIFICAMOS
3x + 2x = 8x – 15
3(5) + 2(5) = 8(5) - 15
15 + 10 = 40 - 15
25 = 25
e) 6 + 5x = x + 30
5x - x = 30 - 6
4x = 24
x = 24/4
x = 6
VERIFICAMOS
6 + 5x = x + 30
6 + 5(6) = 6 + 30
6 + 30 = 36
36 = 36