Question

8.-Resuelve las siguientes ecuaciones:

a) 5x+2=x+10
b) 1+3x=2x+7
c) 2+7x=4-3x
d) x-18=2x-3
e) -5-2x=3-8x-2

Hola amigos por favor ayudenme es urgente gracias

Answer 1

a)
5x + 2 = x + 10
4x = 8
x = 2

b)
1 + 3x = 2x + 7
x = 6

c)
2 + 7x = 7 - 3x
10x = 5
x= 1/2

d)
x - 18 = 2x - 3
-15 = x

e)
-5 - 2x = 3 - 8x - 2
-8 + 2= 10x
-6 = 10x
-3/5 = x

Answer 2

5x + 2 = x + 10

5x - x = 10 - 2

4x = 8

x  = 8/4

x = 2
--------------------------------

1 + 3x = 2x + 7

3x - 2x = 7 - 1

x = 6
-------------------------------

2 + 7x = 4 - 3x

7x + 3x = 4 - 2

10x = 2

x = 2/10

x = 1/5
------------------------------------

x - 18 = 2x - 3

x - 2x = - 3 + 18

- x = 15

x = - 15
----------------------------------

- 5 - 2x = 3 - 8x - 2

- 2x + 8x = 3 - 2 + 5

-6x = 6

x = 6/6

x =  1